$ git clone -n https://src.fedoraproject.org/rpms/caja-actions.git /var/lib/mock/f42-build-side-1-3588351-46945/root/chroot_tmpdir/scmroot/caja-actions
Cloning into '/var/lib/mock/f42-build-side-1-3588351-46945/root/chroot_tmpdir/scmroot/caja-actions'...
$ git fetch origin 7ab4c3bdddb455a1f92ebd90a2b7bb18e8fdbc31:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/caja-actions
 * [new ref]         7ab4c3bdddb455a1f92ebd90a2b7bb18e8fdbc31 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7ab4c3b Convert to %autorelease and %autochangelog