#1 Unable to insert timestamp before transcription field is edited

[Eduard Sukharev]

How to reproduce:
1. Run transqript
2. Open some media to work with
3. press Ctrl+T or go to Edit => Insert timestamp

What happens:
Nothing. No timestamp inserted.

What should happen:
Timestamp should be pasted in the transcription field.

This bug exists only when you just have started up the app and haven't done any edition to the transcription. If you write anything to it (and even after Ctrl+Z to make the field clear again) the timestamp is inserted fine.