debugdeltachain: detect a special case where parents are "skipped"
See inline comment for details, this is a case where the delta is neither
against p1 or p2, Yet it is still a simple delta part of a simple chain.
We now display them as `skip1/skip2` instead of `other`.
# See http://EditorConfig.org for the specification
root = true
[*.py]
indent_size = 4
indent_style = space
trim_trailing_whitespace = true
end_of_line = lf
[*.{c,h}]
indent_size = 8
indent_style = tab
trim_trailing_whitespace = true
end_of_line = lf
[*.t]
indent_size = 2
indent_style = space
trim_trailing_whitespace = false
end_of_line = lf