Label filter shows "invalid value" warning until manually edited

[pikuman83]

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I'm encountering an issue with the label filter on my project's page. I've saved filters in the past, including:
-label:"Framework updates"
This worked fine until a recent update. Now, every time I open the project, I get a warning saying there's an "invalid value for label".

Strangely, the error disappears if I manually edit the filter — for example, I delete the last letter s and retype it. After this minor edit, the filter works again with no error until I revisit the page.

This suggests that the label is still valid, but GitHub's UI isn't parsing or validating it correctly on initial load — possibly due to caching or filter parsing changes introduced recently.

🔧 Reproduction steps:
Save a filter like -label:"Framework updates" in the project's view.

Reload the project page.

Observe the "invalid value for label" warning.

Edit the filter (e.g., delete and retype the final character).

Warning disappears.

Browser/Platform: Chrome

Grabacion.de.pantalla.2025-05-29.074820.mp4

Thanks for the great work — I appreciate the platform and would love to see this fixed!

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[heaths]

This appears to be the same issue I'm seeing e.g.,

The Projects UI even suggested that value, and it works as expected: I'm only see issues in the list view that don't have a cost for that project. If I alter the text of the filter text box in any way, the warning goes away until I save - seemingly, once the filter loses focus.

[jtougas]

Confirming this is affecting our team as well. We have label filters using : in label names (e.g., t:on-hold) and see the "Invalid value" warning on every page load despite the filter working correctly.

A few questions:

• Is this on GitHub's radar / being tracked internally?
• Is there a linked issue we can follow?
• Any recommended workaround beyond manually editing the filter on each load?