$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-worktree-stream.git /var/lib/mock/f38-build-side-43-rust-devel-1421177-31465/root/chroot_tmpdir/scmroot/rust-gix-worktree-stream
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1421177-31465/root/chroot_tmpdir/scmroot/rust-gix-worktree-stream'...
$ git fetch origin 7d5274b83c13f6693b4ae22c125c72a012032c1d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-worktree-stream
 * [new ref]         7d5274b83c13f6693b4ae22c125c72a012032c1d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7d5274b Update to version 0.6.0