#18 Keyboard layout for composing does not follow layout switch

[Joachim Breuer]

1. Have two different input schemes set up; e.g. Germany/German (default) and English-US/Dvorak.
   Per-application switching of input schemes is enabled (Left Alt + Left Shift).

2. Start AllChars.

3. Start Notepad.
   Typing/Composing works as expected.

4. Switch layout to Dvorak with LAlt+LShift.

5. Typing now results in characters corresponding to the new layout.

6. BUG: Composing still uses the German layout when evaluating key strokes within compose sequences.

This may well also affect macro expansion.