Three separate places dropped an axis read on the floor:
- The producer map replaced a variable's record wholesale on every later
write, so a derivation or injector rebinding $outfit erased the wildcard's
axes. The engine keys __wp_axes__ by binding at pick time and a rebind
never clears it, so the axes must survive the override. Carried forward in
both the graph walk and the same-node sibling merge.
- The static preview resolver knew only the numeric .K accessor, so
"$outfit.SHOES" substituted $outfit and stranded ".SHOES" — the preview and
resolved lines both read "a white t-shirt and denim skirt.SHOES". It now
resolves an axis to its first tag, the same deterministic convention @{uuid}
expansion already uses, and leaves an accessor it cannot resolve verbatim
rather than deleting text.
- strip_internals runs at the prompt-render boundary and dropped every
__-prefixed key, __wp_axes__ and __wp_picks__ included. The assembler
therefore rendered "$outfit.SHOES" and "$outfit.0" as literal text while the
identical template resolved one node upstream. Those two tables are read by
key, never as variables, so keeping them cannot leak a $var.