$ git clone -n https://src.fedoraproject.org/rpms/postsrsd.git /var/lib/mock/f39-test-2568249-62209/root/chroot_tmpdir/scmroot/postsrsd
Cloning into '/var/lib/mock/f39-test-2568249-62209/root/chroot_tmpdir/scmroot/postsrsd'...
$ git fetch origin b0c7a385c5bfafe31c8d8eff6d233501b3d17f53:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/postsrsd
 * [new ref]         b0c7a385c5bfafe31c8d8eff6d233501b3d17f53 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b0c7a38 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild