Changing a song chart in Am to Dbm, the chords changed accordingly (Am goes to Dbm) but the leadsheet shows the wrong key signature. It shows 4 sharps (as in C#m). The notation screen also shows 4 sharps.

Solutions:
1. fix key signatures when any enharmonic key is called up, or:
2. do not allow so called "theoretical" enharmonic keys to be chosen in the key drop down menu.