Failed to set flags for new changesets since recently

[Kovoschiz]

I'm submitting a bug report

Brief Description

Can't set flags on recent changesets. Can rate good/bad, and open the drop-down menu. Can change flags on older changesets.

What is the current behaviour, (attach relevant screenshots) ?

Syntax error: JSON.parse: unexpected character at line 1 column 1 of the JSON data HTTP 500 https://osmcha.org/api/v1/changesets/*/tags/*/

What is the expected behaviour ?

Should be able to set flags. Same usability on all changesets.

When does this occur ?

For all changesets after around 2024-02-19 UTC (last I check)

How do we replicate the issue ?

1. Rate good/bad
2. Open the flags menu
3. Click on the flags

Please tell us about your environment:

• Firefox 122.0
  • Enhanced Tracking Protection off (I forgot how to unblock this one Google Analytics thing on basic protection, but it shouldn't matter?)
  • DuckDuckGo Privacy Essentials disabled
  • NoScript allowed all
• Linux Mint 20.2

Other Information / context:

Separate issue from #705 , which allowed me to set flags for some time. It's a new problem.

[willemarcel]

It should be working now. Thanks for reporting.