Currently, incrementalFind matches the next occurence
of the current pattern when you press Ctrl G (or Ctrl
F). In order to match a previous occurence of the same
pattern, you need to press Backspace.
The Backspace mapping violates my expectations - using
Backspace should edit the pattern by removing the last
character. After pressing Backspace, I would expect the
match to move to the first occurence of the new pattern
following the position where the search began.
I think Ctrl H should replace the current
incrementalFind Backspace mapping. Ctrl H is Ctrl G's
compliment globally, and I would expect it to be no
different for incrementalFind.