$ git clone -n https://src.fedoraproject.org/rpms/plexus-build-api.git /var/lib/mock/f38-build-side-42-init-devel-582492-26075/root/chroot_tmpdir/scmroot/plexus-build-api
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-582492-26075/root/chroot_tmpdir/scmroot/plexus-build-api'...
$ git fetch origin cef8542a9c1d7ca119c81e3958038db1902593f0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plexus-build-api
 * [new ref]         cef8542a9c1d7ca119c81e3958038db1902593f0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cef8542 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild