"discards variants without hiding the original or animating stale chrome"
asserted the literal `else wrapper.style.display = 'none'`, which the
all-wrappers discard replaced. The guard keeps its intent and its
message, now over the loop, and gains the other half of the same
invariant: a target inside a `.map()` renders one wrapper per item, so
the blanking and the release that undoes it have to cover the same set,
and releasing only the first match leaves the extra items blanked with
their original never restored.
This file lives on main only, so it was not updated when the shape
changed on the fix branch. The rest of it passes as is: the shader
fallback guard still matches through the new epoch check, and the
CYCLING, resumedState, and variants_ready guards are untouched by these
commits.
Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY
3b0f46798a