when the list of conflicts is created with git diff, all paths are relative from the repo root. then, the grep call on line 73 searching for the conflict symbol will grep from the CWD, which is not necessarily the repo root. this will cause the search to fail, and possibly display an error for every file that couldn't be pathed.

a simple fix would be to prefix each item in the list with git rev-parse --show-toplevel which should return the git root.

more ideally, it might be preferable to use git diff --check, which contains a built-in tool for detecting merge conflicts.