A few-step H3 file whose metadata keeps explicit head sizes but not the head
count was built with one head and failed on the head biases. The count is now
taken from the head bias and patch projection shapes (shapes only, any device
or dtype), with a test through the real loader at every weight dtype.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Tw9fjUsYDkyEtLCrzqv7jo