$ git clone -n https://src.fedoraproject.org/rpms/libghemical.git /var/lib/mock/f45-build-16264-484/root/chroot_tmpdir/scmroot/libghemical
Cloning into '/var/lib/mock/f45-build-16264-484/root/chroot_tmpdir/scmroot/libghemical'...
$ git fetch origin 6441d3229c7e3ec87a2e58610304728629817947:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libghemical
 * [new ref]         6441d3229c7e3ec87a2e58610304728629817947 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6441d32 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild