When pressing the Home button, the cursor should go the beginning of the line but it jumps to the previous line.
The cursor will jump to the first line but it should go to the first character in the second line.
Huh. I'm sure this and #82 are related... I didn't realize there were issues even without blank lines. Unfortunately, this is kinda' core to the way we're using CodeMirror. I probably need to reimplement home/end at some point... :-/
This is fixed in CodeMirror 4.3: codemirror/CodeMirror@9a843ee