*PR Created by the Glary-Bot Agent*
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## Summary
- Fixes app mode bug where custom combo inputs (and other widget inputs)
unselect and show "Widget not visible" after refreshing or reopening a
saved app workflow
- Root cause: `resetSelectedToWorkflow()` loads from
`changeTracker.activeState` which may not have linearData yet after
refresh, and `pruneLinearData()` prunes valid entries during graph
loading when nodes aren't yet in the graph
- Two defensive guards: fallback to `initialState` for authoritative
data, and skip pruning during graph loading
## Changes
- `appModeStore.ts`: `resetSelectedToWorkflow()` now falls back to
`initialState.extra.linearData` when `activeState` has none
- `appModeStore.ts`: `pruneLinearData()` skips node-existence checks
when `ChangeTracker.isLoadingGraph` is true
- Unit tests: 4 new tests covering both fix paths (pruning during
loading, fallback to initialState)
- E2E test: Save-as → close → reopen → verify all inputs persist with no
"Widget not visible"
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-11422-fix-preserve-app-builder-inputs-through-graph-reconfiguration-3476d73d36508166a563f7df3967665c)
by [Unito](https://www.unito.io)
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Co-authored-by: Glary-Bot <glary-bot@users.noreply.github.com>
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
