User popovers don't trigger after expanding a collapsed thread
Summary
When you expand a collapsed thread, the user popovers won't show up on hover.
Steps to reproduce
- Go to an MR
- Expand a thread that is collapsed
- hover over the user names
- no popover :(
Example Project
What is the current bug behavior?
Popover not shown.
What is the expected correct behavior?
Popover shown.
Relevant logs and/or screenshots
