This fixes the case when the user wants to add a label. The user has to use the dropdown’s filter input to look for a label and click it in order to see the bug.
Step to reproduce
- Select at least two issues, one label should be present in all issues, other label should be present in at least one.
- On the label dropdown: Deselect label that is present in all issues, look for another issue using the filter input and click it.
- Click on `Update issues`
Before: Unmarked label were kept on selected issues.
Now: Unmarked label is removed from selected issues
