## Summary
Packing nodes inside a subgraph into a nested subgraph no longer blanks
the parent subgraph node's promoted widget values.
## Changes
- **What**: After `convertToSubgraph` moves interior nodes into a nested
subgraph, `_repointAncestorPromotions` rewrites the promotion store
entries on all host SubgraphNodes so they chain through the new nested
node. `rebuildInputWidgetBindings()` then clears the stale
`input._widget` PromotedWidgetView cache and re-resolves bindings from
current connections.
- The root cause was two separate sets of PromotedWidgetView references:
`node.widgets` (rebuilt from the store — correct) vs `input._widget`
(cached at promotion time — stale). `SubgraphNode.serialize()` reads
`input._widget.value`, which resolved against removed node IDs →
`missing-node` → blank values on the next `checkState` cycle.
## Review Focus
- `_repointAncestorPromotions` iterates all graphs to find host nodes of
the current subgraph type — verify this covers all cases (multiple
instances of the same subgraph type).
- `rebuildInputWidgetBindings()` clears `_promotedViewManager` and
re-resolves — confirm no side effects on event listeners or pending
promotions.
- The nested node gets duplicate promotion entries (from both
`_repointAncestorPromotions` and `promoteRecommendedWidgets` via the
`subgraph-converted` event). `store.promote()` deduplicates via
`isPromoted`, but worth verifying.
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-10532-fix-repoint-ancestor-promoted-widget-bindings-when-packing-nested-subgraphs-32e6d73d365081109d5aea0660434082)
by [Unito](https://www.unito.io)
---------
Co-authored-by: Amp <amp@ampcode.com>
Co-authored-by: Benjamin Lu <benjaminlu1107@gmail.com>
Co-authored-by: Christian Byrne <cbyrne@comfy.org>
Co-authored-by: GitHub Action <action@github.com>
Co-authored-by: Comfy Org PR Bot <snomiao+comfy-pr@gmail.com>
Co-authored-by: christian-byrne <72887196+christian-byrne@users.noreply.github.com>
Co-authored-by: github-actions <github-actions@github.com>
Co-authored-by: pythongosssss <125205205+pythongosssss@users.noreply.github.com>
Co-authored-by: Yourz <crazilou@vip.qq.com>
