Unable to save category settings made by plugins

Thank you for that explanation, Kris.

Where I am usually pretty relaxed when I need to update plugins because of core changes, and happy with the way developers are guided, I think the Discourse team really dropped the ball here.

  • There was no announcement (at least, I cannot find it, and @moin hasn’t pointed it out to me (yet) :wink: )
  • There was no attempt to mitigate this with some blanket code in core
  • There isn’t even a browser development console warning

Things just stopped working.

A quick scan, probably not even complete, shows this has broken AT LEAST the following plugins:

  • Discourse
    • calendar :white_check_mark: ← official Discourse plugin
    • restricted replies :white_check_mark: ← official Discourse plugin
  • (members of) Pavilion
    • category lockdown
    • custom wizard
    • locations
    • chatbot
  • Communiteq
    • private replies
    • private topics
    • category restrictor
    • always anonymous
    • at least 10 private plugins
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