This is a re-post of pre-commit/pre-commit-hooks#100:

Either ignore that conflict pattern in .rst files or are a option to ignore certain file patterns (I don't want to list all the other file options).

This only shows up when in a merge-conflict, the workaround is to uninstall prek/pre-commit, and then re-install afterwards.

For testing, this can be triggered by adding this to an .rst (or any!) file:

Depends
=======

And temporarily adding --assume-in-merge:

      - id: check-merge-conflict
        args: [--assume-in-merge]

One suggestion to fix: only flag when ======= appears after a <<<<<<< and before a >>>>>>> in the same file.

Of course, those could also occur in real life, but it would greatly reduce the likelihood.