$ git clone -n https://src.fedoraproject.org/rpms/libspectre.git /var/lib/mock/f40-build-786078-134163/root/chroot_tmpdir/scmroot/libspectre
Cloning into '/var/lib/mock/f40-build-786078-134163/root/chroot_tmpdir/scmroot/libspectre'...
$ git fetch origin c9727c35384bc53bfb079371ed5bc64fdcae328f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libspectre
 * [new ref]         c9727c35384bc53bfb079371ed5bc64fdcae328f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c9727c3 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild