Checkpoints pinned to the revisions every run used¶

Nothing passed a revision when loading a checkpoint, so every load read the Hub's main, and both 7B repositories changed their config and tokenizer files on 2024-11-18, after publication. The cluster's cache held one revision of each for every run to date: Qwen2.5-Coder-7B-Instruct c03e6d3 (README-only changes after 2024-11-18) and Qwen2.5-Coder-7B 0396a76; the 1.5B dev model is pinned at its current 2e1fd39. MODEL_REVISIONS in sphragis/experiment/model.py now passes them to every load, and a checkpoint without one refuses to load. Past runs are unaffected: they read these revisions.