$ git clone -n https://src.fedoraproject.org/rpms/ortp.git /var/lib/mock/f38-build-side-42-init-devel-878037-28471/root/chroot_tmpdir/scmroot/ortp
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-878037-28471/root/chroot_tmpdir/scmroot/ortp'...
$ git fetch origin e7ab4c1e00d9c540234bebaee8148e34bf69fa39:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ortp
 * [new ref]         e7ab4c1e00d9c540234bebaee8148e34bf69fa39 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e7ab4c1 Removals