$ git clone -n https://src.fedoraproject.org/rpms/rust-uu_hashsum.git /var/lib/mock/f41-build-810474-146716/root/chroot_tmpdir/scmroot/rust-uu_hashsum
Cloning into '/var/lib/mock/f41-build-810474-146716/root/chroot_tmpdir/scmroot/rust-uu_hashsum'...
$ git fetch origin 7aa0063b7288da31b13a39abae8f60d563000ab1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-uu_hashsum
 * [new ref]         7aa0063b7288da31b13a39abae8f60d563000ab1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7aa0063 Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces