$ git clone -n https://src.fedoraproject.org/rpms/rust-drm.git /var/lib/mock/f38-build-side-42-init-devel-1155887-30527/root/chroot_tmpdir/scmroot/rust-drm
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1155887-30527/root/chroot_tmpdir/scmroot/rust-drm'...
$ git fetch origin e70274798c24663cecfd54c2a447c81c64637f9b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-drm
 * [new ref]         e70274798c24663cecfd54c2a447c81c64637f9b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e702747 Initial import; Fixes: RHBZ#2224816