$ git clone -n https://src.fedoraproject.org/rpms/kiriki.git /var/lib/mock/f39-build-1644286-40206/root/chroot_tmpdir/scmroot/kiriki
Cloning into '/var/lib/mock/f39-build-1644286-40206/root/chroot_tmpdir/scmroot/kiriki'...
$ git fetch origin e2b3686dab056e1f64b76a6d746c71a223dc264c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kiriki
 * [new ref]         e2b3686dab056e1f64b76a6d746c71a223dc264c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e2b3686 23.08.2