$ git clone -n https://src.fedoraproject.org/rpms/rust-navi.git /var/lib/mock/f41-build-811075-147141/root/chroot_tmpdir/scmroot/rust-navi
Cloning into '/var/lib/mock/f41-build-811075-147141/root/chroot_tmpdir/scmroot/rust-navi'...
$ git fetch origin 0e912f7bfd00479f4430e2257d2765b3718962c8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-navi
 * [new ref]         0e912f7bfd00479f4430e2257d2765b3718962c8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0e912f7 Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces