$ git clone -n https://src.fedoraproject.org/rpms/kalzium.git /var/lib/mock/f39-build-2444759-61041/root/chroot_tmpdir/scmroot/kalzium
Cloning into '/var/lib/mock/f39-build-2444759-61041/root/chroot_tmpdir/scmroot/kalzium'...
$ git fetch origin fdc1c515cb75b22a30a5e2011753b107dfb9a6ed:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kalzium
 * [new ref]         fdc1c515cb75b22a30a5e2011753b107dfb9a6ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fdc1c51 23.08.5