$ git clone -n https://src.fedoraproject.org/rpms/libcss.git /var/lib/mock/f40-build-2293735-56217/root/chroot_tmpdir/scmroot/libcss
Cloning into '/var/lib/mock/f40-build-2293735-56217/root/chroot_tmpdir/scmroot/libcss'...
$ git fetch origin aebbe06b83b71f7088be772fec8260e32de087c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libcss
 * [new ref]         aebbe06b83b71f7088be772fec8260e32de087c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aebbe06 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild