The #1236 fix guarded to_obsidian's member loop but not to_canvas, so
`graphify export obsidian` (which also writes graph.canvas) still crashed with
KeyError on a community member id absent from G — after the notes exported,
leaving a partial mirror. Reported on 0.9.5 by @swells808.
Apply the same `m in G and m in node_filenames` filter in both to_canvas loops:
the box-sizing loop (so the group box matches the cards actually laid out) and
the card-layout loop (so the sort/label deref and the node_filenames fallback
never touch a dangling id). Regression test added alongside the to_obsidian one.
Full suite 2872.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
safishamsi
2ba07e84e1