$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-attributes.git /var/lib/mock/f38-build-side-43-rust-devel-1421349-31465/root/chroot_tmpdir/scmroot/rust-gix-attributes
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1421349-31465/root/chroot_tmpdir/scmroot/rust-gix-attributes'...
$ git fetch origin 27706fbde6dc0d08eb1e83e7bd396d4907b964f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-attributes
 * [new ref]         27706fbde6dc0d08eb1e83e7bd396d4907b964f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27706fb Update to version 0.20.0