$ git clone -n https://src.fedoraproject.org/rpms/rust-uu_tr.git /var/lib/mock/f41-build-810915-146983/root/chroot_tmpdir/scmroot/rust-uu_tr
Cloning into '/var/lib/mock/f41-build-810915-146983/root/chroot_tmpdir/scmroot/rust-uu_tr'...
$ git fetch origin 231082b32ad3045a650b3b6cce06e877ebd734e8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-uu_tr
 * [new ref]         231082b32ad3045a650b3b6cce06e877ebd734e8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 231082b Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces