$ git clone -n https://src.fedoraproject.org/rpms/drm_info.git /var/lib/mock/f42-build-side-1-3583668-46890/root/chroot_tmpdir/scmroot/drm_info
Cloning into '/var/lib/mock/f42-build-side-1-3583668-46890/root/chroot_tmpdir/scmroot/drm_info'...
$ git fetch origin 252e12af6b372f7aaf66b3bb00b7a3f2347e5cce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/drm_info
 * [new ref]         252e12af6b372f7aaf66b3bb00b7a3f2347e5cce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 252e12a Update to 2.8.0 (rhbz#2371140)