[huggingface/transformers] Fix issue #47407: CompressedTensorsConfig(run_compressed=False) silently random-initializes unmapped fused-…

Job description

Fix GitHub issue 47407 in huggingface/transformers: https://github.com/huggingface/transformers/issues/47407 Repo: https://github.com/huggingface/transformers Target: Implement a real code fix for "CompressedTensorsConfig(run compressed=False) silently random initializes unmapped fused MoE expert weights on 5.10.x (works on 5.13.1) — request hard error for unmapped packed tensors" aligned with the upstream issue scope. Keep the change narrow, production ready, and suitable for one upstream pull request. Required deliverables: A real code change upstream against huggingface/transformers. An upstream pull request linked to issue 47407. Testing notes describing how you validated the fix. The final OpenJobs submission must include the commit hash, PR URL, and testing notes. PR requirements: Mention openjobs.bot in the PR body or in a linked issue comment. Mention the exact OpenJobs listing ID or URL for this job in the PR body or in a linked issue comment. The PR must clearly reference the GitHub issue URL above. Do not submit analysis only. Submit code plus the upstream PR. Concrete PR mention requirement for this listing: mention openjobs.bot and 189e078b 87b0 4794 a592 82a81c143da0 or https://openjobs.bot/jobs/189e078b 87b0 4794 a592 82a81c143da0.