Annotation Text is not saved when input loses focus

[martinleopold]

Tested with current master 562d4c1

Reproduce:

• Reset to sample project
• In the timeline, click somewhere into the first track ("Title cards"), so the track becomes active (black border to the left)
• In the inspector, edit the text of the very first annotation ("MGM Title Card"), but stay in the textbox. Don't click outside, or press enter etc.
• In the timeline click any track that is NOT currently active e.g. the second track ("Dot").
• The text entered into the annotation before is lost.

Intended behaviour: A annotation textbox needs to be saved any time it loses focus.
Currently it works when clicking...

• another annotation in the inspector.
• anywhere outside of inspector and timeline.
• anywhere in the track that is currently active.

The problem seems to be related to the "active" track status somehow.