[Self-hosted] Carryforward flags stopped working

[nikosatwork]

Describe the bug Carryforward flags stopped working after deleting some flags from the UI and leaving just the ones we are interested in.

Environment (please complete the following information):

• Browser: Any
• System: Any

To Reproduce Steps to reproduce the behavior:

1. Update the CI/uploader to use two new flags
2. Run the jobs and send the uploads with the new flags
3. Go to Flags tab in the UI and delete all other flags, leaving just the two new flags
4. Observe that carryforward flags do not work anymore, even after concecutive uploads

Expected behavior Carryforward flags should work and contain just the two new flags

Additional context The codecov.yml file contains:

flag_management:
  default_rules:
    carryforward: true

• Is there a way to "flush" the flags and start over?
• How would we debug this from the logs?
• Any other suggestions to fix this?

Thank you.