$ git clone -n https://src.fedoraproject.org/rpms/lua-expat.git /var/lib/mock/f39-build-1466003-33637/root/chroot_tmpdir/scmroot/lua-expat
Cloning into '/var/lib/mock/f39-build-1466003-33637/root/chroot_tmpdir/scmroot/lua-expat'...
$ git fetch origin 3a34a17ec7ae0f0581e48ace9b749a89d1f96663:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lua-expat
 * [new ref]         3a34a17ec7ae0f0581e48ace9b749a89d1f96663 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a34a17 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild