$ git clone -n https://src.fedoraproject.org/rpms/libircclient.git /var/lib/mock/f39-build-2189550-51421/root/chroot_tmpdir/scmroot/libircclient
Cloning into '/var/lib/mock/f39-build-2189550-51421/root/chroot_tmpdir/scmroot/libircclient'...
$ git fetch origin 6a3fa43362201864808f6b85a7852d596f3275b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libircclient
 * [new ref]         6a3fa43362201864808f6b85a7852d596f3275b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a3fa43 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild