$ git clone -n https://src.fedoraproject.org/rpms/rust-sinit.git /var/lib/mock/f40-build-780958-131386/root/chroot_tmpdir/scmroot/rust-sinit
Cloning into '/var/lib/mock/f40-build-780958-131386/root/chroot_tmpdir/scmroot/rust-sinit'...
$ git fetch origin da4aba4bfa6f2a2f6f58f88742a009d67b035f2a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sinit
 * [new ref]         da4aba4bfa6f2a2f6f58f88742a009d67b035f2a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da4aba4 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild