$ git clone -n https://src.fedoraproject.org/rpms/rust-uu_ls.git /var/lib/mock/f41-build-810742-146925/root/chroot_tmpdir/scmroot/rust-uu_ls
Cloning into '/var/lib/mock/f41-build-810742-146925/root/chroot_tmpdir/scmroot/rust-uu_ls'...
$ git fetch origin deb612126a31de0b26bd3166426dec554cf8997b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-uu_ls
 * [new ref]         deb612126a31de0b26bd3166426dec554cf8997b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at deb6121 Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces