$ git clone -n https://src.fedoraproject.org/rpms/onnx.git /var/lib/mock/f40-build-2336630-59467/root/chroot_tmpdir/scmroot/onnx
Cloning into '/var/lib/mock/f40-build-2336630-59467/root/chroot_tmpdir/scmroot/onnx'...
$ git fetch origin 1701db22d312b6fefd9437cf07e3967813f8ec9f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/onnx
 * [new ref]         1701db22d312b6fefd9437cf07e3967813f8ec9f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1701db2 Fix build with protobuf-devel