workinf_Blender_Wasm/docs/status/M16-GAP-00227.md

M16-GAP-00227 Status

status: done task: armature.collection_remove_unused operator LOCAL_EXACT slice updated: 2026-08-22 America/New_York

scope:

• The minimal fixture contains two bone collections retaining one distinct bone each and two empty collections, with an empty collection active at index 2.
• Desktop runs ARMATURE_OT_collection_remove_unused with poll=true and FINISHED, removing both unused collections, preserving the retained collections and bones, and keeping the result through save/reopen.
• The existing Main reader's collection indices and bone IDs provide the observable removal; no new data-block, editor, or browser behavior was added.

evidence:

• The generator, desktop checker, npm comparator, direct comparator, and task-context checks passed. Repeated checker runs recognize the already-removed collections and remain idempotent.
• WASM/Main observes the same remaining collection order, member IDs, and active index, preserves them across save/reopen, and rejects malformed Blend input without Main mutation.
• Chromium-only policy was preserved; no Firefox/WebKit run was made.

nextTask: M16-GAP-00228