$ git clone -n https://src.fedoraproject.org/rpms/rust-cassowary.git /var/lib/mock/f40-build-2659485-66918/root/chroot_tmpdir/scmroot/rust-cassowary
Cloning into '/var/lib/mock/f40-build-2659485-66918/root/chroot_tmpdir/scmroot/rust-cassowary'...
$ git fetch origin dfe4d6e50e718251bc98cdb4544e5fea66870324:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cassowary
 * [new ref]         dfe4d6e50e718251bc98cdb4544e5fea66870324 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dfe4d6e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild