$ git clone -n https://src.fedoraproject.org/rpms/rust-uu_ptx.git /var/lib/mock/f41-build-810749-146927/root/chroot_tmpdir/scmroot/rust-uu_ptx
Cloning into '/var/lib/mock/f41-build-810749-146927/root/chroot_tmpdir/scmroot/rust-uu_ptx'...
$ git fetch origin a34dd71199eca563d4d391b37cb59c70d214da0c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-uu_ptx
 * [new ref]         a34dd71199eca563d4d391b37cb59c70d214da0c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a34dd71 Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces