Jeroen hit a black mosaic zooming into a body from a fresh make-atlas
spawn. Live diagnosis showed all six tiles held with colored textures
and no repaint; the original line-specific diagnosis (unpaired
queue_redraw in _on_tile_ready) turned out WRONG — the pairing already
existed (lead's truncated grep misread the function; Stig verified via
git log -p before acting). Rather than chase the exact dropped signal
edge, _process() now self-heals: both viewer and overlay redraw every
frame while the tile set has pending tiles (has_pending_tiles(), new) —
a strict superset that closes the black regardless of which edge drops,
pinned by a _draw()-counting real-subclass spy test.
Legend stacking root cause found by trace, not guess: ImplantApp.
_on_screen_changed() re-runs enter() unconditionally on repeat
same-screen pushes — each re-entry tore down and rebuilt all six tile
requests (the round-6 orphaning fingerprint via a new trigger) and
stacked another legend (~10 deep, full-height dark panel). Fixed both
ends: ImplantPanel.clear() frees immediately (same-frame re-entrant
refresh can never observe stale children — protects every implant app),
and RegionalScreen.enter() no-ops for the same body (different body
still re-enters fresh). The load-bearing regression asserts an ARRIVED
TILE'S DATA survives a repeat push — node identity would not catch the
teardown (the tile-set Node is a fixed field; only its internals reset).
Cold-start UX: pending tiles now draw the single-window path's
COLOR_BORDER_FADE wash instead of raw background — a deriving mosaic
reads as loading, not broken.
Suites green (zoom_ladder 48, viewer 74, tile_set 20, overlay 30,
overlays 46 + 2 new files), gdlint clean, revert-verified throughout.
jpmschweitzer
d4526e51ff
