$ git clone -n https://src.fedoraproject.org/rpms/gprolog.git /var/lib/mock/f39-build-2557223-62012/root/chroot_tmpdir/scmroot/gprolog
Cloning into '/var/lib/mock/f39-build-2557223-62012/root/chroot_tmpdir/scmroot/gprolog'...
$ git fetch origin bec5cafb662061e83d80a12775fd2a26e976ac74:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gprolog
 * [new ref]         bec5cafb662061e83d80a12775fd2a26e976ac74 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bec5caf Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild