After a block via Special:InvestigateBlock the script investigateblock.js tries to "infuse" #mw-input-wpReason but at this stage there is no #mw-input-wpReason widget.
Steps to reproduce
- Open Special:InvestigateBlock while logged into a user with the checkuser and sysop groups
- Open the browser console
- Fill out the form and successfully submit it
What happens
The browser console has a JavaScript error
What should happen
No error should appear in the browser console