Merge widget switches from "Unresolved threads" to "Merge conflicts" message after reload

Summary

I have now observed a few times that the MR widget with the "Merge" button sometimes switches its state and was finally able to record it. I had !49614 (merged) open for a few minutes and it showed me the "Unresolved thread" message. When reloading however, it now shows me a message that there are merge conflicts. While both messages are true, it's not only confusing for the user why they are seeing different messages, abut also makes them lose trust into the stability of our system.

Steps to reproduce

I sadly don't have exact steps as I couldn't find a pattern yet when exactly it happens.

Example Project

!49614 (merged)

Relevant logs and/or screenshots

Different_merge_problems

/cc @phikai @pedroms