Steps to repro:
1. Create a new project

2. Open Timeline window (Window -> Sequencing -> Timeline)

3. Click the plus icon in the Timeline window to add a track

4. Add Track Group

5. Double-click the Track Group name to rename it

6. Type something until the name reaches its bounds

Expected result: Name input field either doesn't end (same as the sub-tracks) or gets cut off
Actual result: Input starts to go backwards after hitting a length barrier, which is inconsistent with the behaviour of renaming the sub-item found in the dropdown

Reproducible with: Timeline 1.2.18 (2019.4.37f1), 1.7.1 (2022.2.0a7)

Notes:
- Reproducible both on Mac and Linux
- The issue seems to reproduce only on first rename, on subsequent ones the name field doesn't end