Change Details

Removed a submodule with `diff.submodule` set to `log`, saw `arc diff error; with this change, it no longer does.

Removed a submodule with `diff.submodule` set to `log`, saw `arc diff` error; with this change, it no longer does.

Removed a submodule with `diff.submodule` set to `log`, saw `arc diff` error; with this change, it no longer does.