$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-pack.git /var/lib/mock/f40-build-2208481-52132/root/chroot_tmpdir/scmroot/rust-gix-pack
Cloning into '/var/lib/mock/f40-build-2208481-52132/root/chroot_tmpdir/scmroot/rust-gix-pack'...
$ git fetch origin ddbb410e82c0e28b884477b21e21d8992be1aa82:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-pack
 * [new ref]         ddbb410e82c0e28b884477b21e21d8992be1aa82 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ddbb410 Update to version 0.44.0