$ git clone -n https://src.fedoraproject.org/rpms/gmic.git /var/lib/mock/f42-build-3419603-45162/root/chroot_tmpdir/scmroot/gmic
Cloning into '/var/lib/mock/f42-build-3419603-45162/root/chroot_tmpdir/scmroot/gmic'...
$ git fetch origin 7ca97fad94cdd6e18646a32b95c13595ce7f5b9a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gmic
 * [new ref]         7ca97fad94cdd6e18646a32b95c13595ce7f5b9a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7ca97fa Drop obsolete patch files