Label Disappears on Revisions with 0% Traffic in Multi-Revision Mode (Azure Portal)

[almasantiago]

This issue is a: (mark with an x)

• [x] bug report -> please search issues before submitting
• [ ] documentation issue or request
• [ ] regression (a behavior that used to work and stopped in a new release)

Issue description

We are experiencing an issue within the Azure Container Apps in multi-revision mode. After adding a label to a revision that is allocated 0% traffic, the label initially appears to save successfully. However, upon refreshing the page or revisiting the revision, the label no longer appears.

Steps to reproduce

1. Switch to multi-revision mode.
2. Create a new revision; allocate 0% traffic. Traffic split is now 100/0.
3. Add a label to the revision with 0% traffic through the Azure portal.
4. Confirm that the label appears to be saved successfully.
5. Refresh the page or navigate away from and back to the revision details page.

Expected behavior The label added to the revision with 0% traffic should persist and be visible after refreshing or revisiting the page.

Actual behavior After refreshing or revisiting the revision details page, the previously added label is no longer visible. The label seemingly does not persist on revisions with 0% traffic, even though it shows that it was saved successfully.

Screenshots

After adding and saving the label:

After refreshing the page:

Additional context

• Issue happens when the label is added through the Azure portal.
• Labels added to revisions with traffic allocation greater than 0% do not exhibit this issue and persist as expected.

[karpikpl]

I'm seeing the same issue.

[anthonychu]

Thanks for reporting. We'll investigate.