$ git clone -n https://src.fedoraproject.org/rpms/kalzium.git /var/lib/mock/f39-build-2401839-60554/root/chroot_tmpdir/scmroot/kalzium
Cloning into '/var/lib/mock/f39-build-2401839-60554/root/chroot_tmpdir/scmroot/kalzium'...
$ git fetch origin 72ffd9c8303262588036c15d8dbd8d543f16b9b2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kalzium
 * [new ref]         72ffd9c8303262588036c15d8dbd8d543f16b9b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 72ffd9c 23.08.4