$ git clone -n https://src.fedoraproject.org/rpms/luksmeta.git /var/lib/mock/f45-build-17726-503/root/chroot_tmpdir/scmroot/luksmeta
Cloning into '/var/lib/mock/f45-build-17726-503/root/chroot_tmpdir/scmroot/luksmeta'...
$ git fetch origin a1c17904f3330eb2b52dde14db94dd1d9788ac2f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/luksmeta
 * [new ref]         a1c17904f3330eb2b52dde14db94dd1d9788ac2f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a1c1790 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild