f1c87d1bd2
After creating a new scene in a separate window when performing UI tests, the respective view layer for the window may not be updated immediately in the event loop. Previously, this was mitigated with a single `yield` statement that would delay processing by a single tick. To fix this issue, this commit adds the capability to yield for a specific `timedelta` and waits this amount of time for the two affected tests. Pull Request: https://projects.blender.org/blender/blender/pulls/136012