Pressing "Enter" no longer confirms the name change of a game object in the inspector.

Repro steps:
1. Open an empty scene
2. Select any game object (or create one if none are present)
3. Rename game object in inspector and press "enter" to confirm new name
4. Notice that the name reverts to whatever it was called before the change

Expected outcome: New name replaces old name.

Notes:
- Issue first appears in 5.4.0a4
- Besides renaming, issue can also be found when changing the brightness value of the ambient light (RenamingBug_brightnessValue.jpg)
- Workaround is to press "tab" after changing a value.