$ git clone -n https://src.fedoraproject.org/rpms/apiguardian.git /var/lib/mock/f38-build-side-42-init-devel-804413-28144/root/chroot_tmpdir/scmroot/apiguardian
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-804413-28144/root/chroot_tmpdir/scmroot/apiguardian'...
$ git fetch origin 16a87e070a7750807bf7f1aa4ff5b09e4aba644f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/apiguardian
 * [new ref]         16a87e070a7750807bf7f1aa4ff5b09e4aba644f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 16a87e0 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild