workinf_Blender_Wasm/docs/status/M16-GAP-00198.md

M16-GAP-00198 Status

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

scope:

• The minimal fixture contains two selected mesh objects. The active object owns WebGapAnimMergeActiveAction; the source object owns WebGapAnimMergeSourceAction, each with one three-key custom-property channel.
• Blender invokes ANIM_OT_merge_animation with poll=true and FINISHED, moving the source slot into the active action. Both objects then observe WebGapAnimMergeActiveAction with both channels; the source action has no remaining users.

evidence:

• Desktop evidence records the exact pre/post action channels, operator status, active/selected state, and save/reopen stability.
• WASM/Main reads the post-operation fixture with two WebGapAnimMergeActiveAction animation entries (one per object), both carrying the merged channels; save/reopen is exact and malformed Blend input is rejected without Main mutation.
• Fixture generation, background desktop operator checker, npm comparator, direct idempotent comparator, Python syntax checks, and artifact hashing passed. No production reader or protocol change was made.

nextTask: M16-GAP-00199