Steps to reproduce:
1. Ctrl-N to open a new compose window
2. Set the sender using keyboard only
3. Use tab to jump to the subject then to the body compose area
Results:
The "Spell" button in the compose toolbar is grayed out and I can't enter ê. If I click using the mouse in the body compose area, then the "Spell" button becomes normal and I can enter whichever â ô û I want. This happens again if I move using the mouse to the subject then use tab to move to the body compose area.
Ok I finally managed to narrow it down.
Steps to reproduce:
1. Ctrl-N to open a new compose window
2. Set the sender using keyboard only
3. Use tab to jump to the subject then to the body compose area
Results:
The "Spell" button in the compose toolbar is grayed out and I can't enter ê. If I click using the mouse in the body compose area, then the "Spell" button becomes normal and I can enter whichever â ô û I want. This happens again if I move using the mouse to the subject then use tab to move to the body compose area.