Problem:    Vim9: block in for loop doesn't behave like a code block.
Solution:   Use a new block ID for each loop at the script level.

Problem:    Splitting a line with a text prop "above" moves it to a new line
            below.
Solution:   Keep an "above" text prop above the first line.

Problem:    Substitute prompt does not highlight an empty match.
Solution:   Highlight at least one character.

Problem:    Function called at debug prompt is also debugged.
Solution:   Reset the debug level while entering the debug command.
            (closes #11118)

Problem:    A few problems with 'splitscroll'.
Solution:   Fix 'splitscroll' problems. (Luuk van Baal, closes #11117)

Problem:    Incorrect color for modeless selection with GTK.
Solution:   Use simple inversion instead of XOR. (closes #11111)

Problem:    On an AZERTY keyboard digit keys get the shift modifier.
Solution:   Remove the shift modifier from digit keys. (closes #11109)

Problem:    Visual highlighting extends into virtual text prop.
Solution:   Do not highlight what isn't actually selected.  Fix ordering of
            stored text props.

Problem:    Virtual text "above" does not work with 'nowrap'.
Solution:   Do wrap the line after. (closes #11084)