When clicking publish after entering the metadata for a Flickr image, UploadWizard hangs at the 'Submitting details…' stage, with the below error in the console.
URL: https://commons.wikimedia.org/wiki/Special:UploadWizard?debug=1
jQuery.Deferred exception: this.sourceInput is undefined uw.deed.Abstract.prototype.getSourceWikiText@https://commons.wikimedia.org/w/extensions/UploadWizard/resources/deed/uw.deed.ThirdParty.js?d5041:333:3 getWikiText@https://commons.wikimedia.org/w/extensions/UploadWizard/resources/mw.UploadWizardDetails.js?d2e32:795:30 submit@https://commons.wikimedia.org/w/extensions/UploadWizard/resources/mw.UploadWizardDetails.js?d2e32:863:20 uw.controller.Details.prototype.transitionOne@https://commons.wikimedia.org/w/extensions/UploadWizard/resources/controller/uw.controller.Details.js?179f5:274:25 uw.ConcurrentQueue.prototype.executeNext@https://commons.wikimedia.org/w/extensions/UploadWizard/resources/uw.ConcurrentQueue.js?77946:146:25 uw.ConcurrentQueue.prototype.startExecuting@https://commons.wikimedia.org/w/extensions/UploadWizard/resources/uw.ConcurrentQueue.js?77946:164:9 uw.controller.Details.prototype.transitionAll@https://commons.wikimedia.org/w/extensions/UploadWizard/resources/controller/uw.controller.Details.js?179f5:294:14 uw.controller.Details.prototype.submit@https://commons.wikimedia.org/w/extensions/UploadWizard/resources/controller/uw.controller.Details.js?179f5:321:15 uw.controller.Details.prototype.startDetails/<@https://commons.wikimedia.org/w/extensions/UploadWizard/resources/controller/uw.controller.Details.js?179f5:156:13 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3223:31 fireWith@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3353:7 mightThrow@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3548:46 Deferred/then/resolve/</process<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3557:12 Deferred/then/resolve/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3587:9 mightThrow@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3489:29 Deferred/then/resolve/</process<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3557:12 setTimeout handler*Deferred/then/resolve/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3602:16 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3223:31 add@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3282:7 Deferred/then/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3622:24 Deferred@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3713:9 then@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3607:20 mightThrow@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3527:17 Deferred/then/resolve/</process<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3557:12 setTimeout handler*Deferred/then/resolve/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3602:16 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3223:31 fireWith@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3353:7 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3361:10 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3223:31 fireWith@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3353:7 when/updateFunc/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3743:15 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3223:31 fireWith@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3353:7 mightThrow@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3548:46 Deferred/then/resolve/</process<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3557:12 Deferred/then/resolve/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3587:9 mightThrow@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3489:29 Deferred/then/resolve/</process<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3557:12 setTimeout handler*Deferred/then/resolve/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3602:16 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3223:31 add@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3282:7 Deferred/then/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3622:24 Deferred@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3713:9 then@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3607:20 mightThrow@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3527:17 Deferred/then/resolve/</process<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3557:12 setTimeout handler*Deferred/then/resolve/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3602:16 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3223:31 fireWith@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3353:7 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3361:10 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3223:31 fireWith@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3353:7 when/updateFunc/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3743:15 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3223:31 fireWith@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3353:7 mightThrow@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3548:46 Deferred/then/resolve/</process<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3557:12 Deferred/then/resolve/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3587:9 mightThrow@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3489:29 Deferred/then/resolve/</process<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3557:12 setTimeout handler*Deferred/then/resolve/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3602:16 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3223:31 add@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3282:7 Deferred/then/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3622:24 Deferred@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3713:9 then@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3607:20 mightThrow@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3527:17 Deferred/then/resolve/</process<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3557:12 setTimeout handler*Deferred/then/resolve/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3602:16 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3223:31 fireWith@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3353:7 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3361:10 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3223:31 fireWith@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3353:7 when/updateFunc/<@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3743:15 fire@https://commons.wikimedia.org/w/resources/lib/jquery/jquery.js?12e87:3223:31 undefined jquery.js:3783:18