$ git clone -n https://src.fedoraproject.org/rpms/rust-uu_head.git /var/lib/mock/f41-build-818296-151032/root/chroot_tmpdir/scmroot/rust-uu_head
Cloning into '/var/lib/mock/f41-build-818296-151032/root/chroot_tmpdir/scmroot/rust-uu_head'...
$ git fetch origin bcd73c25b754c3b871069581b4b34a2c2a9311ed:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-uu_head
 * [new ref]         bcd73c25b754c3b871069581b4b34a2c2a9311ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bcd73c2 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild