The exporter logic doesn't seem to work with the latest SAM3

[copumpkin]

I see you have a submodule for SAM3 that's pinned to a version from about 6 months ago. I tried running the same logic against their current repo and this happened:

  File "sam3/model/vitdet.py", line 597, in forward
      q, k = self._apply_rope(q, k)
  File "sam3/model/vitdet.py", line 565, in _apply_rope
      assert self.freqs_cis is not None
  AttributeError: 'Attention' object has no attribute 'freqs_cis'. Did you mean: 'freqs_cos'?

Versions: samexporter @ 8d78443, its submodule pinned at sam3 2d08d73 (2026-02-20), tried against sam3 96914d2 (2026-07-30), torch 2.10.0.

My Claude concocted a small patch that makes it work again which I can submit as a PR if helpful, but I figured I'd report the issue here first.