Make sure to consistently calculate tiebreak scores based on the
original line.
This change may not be preferable if you filter aligned tabular input on
a subset of columns using --nth. However, if we calculate length
tiebreak only on the matched components instead of the entire line, the
result can be very confusing when multiple --nth components are
specified, so let's keep it simple and consistent.
Close#926
Due to performance consideration, FuzzyMatchV2 does not return the exact
positions of the matching characters by default. However, the ommission
caused `--tiebreak=begin` to produce inaccurate result in some cases.
(echo baz foo bar; echo foo bar baz) | fzf --tiebreak=begin -fbar | head -1
# Expected: foo bar baz
# Actual: baz foo bar
This commit fixes the problem by using the end offset which is
guaranteed to be correct.
