$ git clone -n https://src.fedoraproject.org/rpms/rust-globwalk0.8.git /var/lib/mock/f41-build-side-1-3134823-39762/root/chroot_tmpdir/scmroot/rust-globwalk0.8
Cloning into '/var/lib/mock/f41-build-side-1-3134823-39762/root/chroot_tmpdir/scmroot/rust-globwalk0.8'...
$ git fetch origin 4c6d3a6bab15fafdbe70d91baa763ce93ea42976:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-globwalk0.8
 * [new ref]         4c6d3a6bab15fafdbe70d91baa763ce93ea42976 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c6d3a6 compat package no longer needed