Steps to replicate the issue (include links if applicable):

• I'm building a wikibase.cloud instance at ottgaz.org
• The source I'm using to edit it is an OpenRefine project, reconciled using the docker of openrefine wikibase
• Everything works as expected as far as reconciliation is concerned, and editing with quickstatements works well.
• The only thing that is not working properly is Upload edits to Wikibase....

What happens?:
When I click "Upload Edits," the uploading dialog appears, at 0%, runs for a minute, then disappears, with no edits performed.

This is the error in the OpenRefine log:

12:24:35.092 [..ting.EditBatchProcessor] MediaWiki error while editing [badtags]: The tag "openrefine-3.7" is not allowed to be manually applied. (2059ms)

What should have happened instead?:
What I expected was the same thing that happens when I upload edits to wikidata.

Software version (skip for WMF-hosted wikis like Wikipedia):

• OpenRefine version 3.7-beta2

Other information (browser name/version, screenshots, etc.):

• I tried logging in (in OpenRefine) with my usual wikibase username, and with a bot. (I did not however try "login with your owner-only consumer.")
• OpenRefine Wikibase logs (that I see in the docker) do not show any activity when I run this process