Fixes the janky UX when loading templates via URL query parameters by
moving the loading logic earlier in the app lifecycle (from
GraphView.onGraphReady to
useWorkflowPersistence.restorePreviousWorkflow). The saved workflow now
loads first as a background tab, then the template loads as the active
tab, eliminating the visual flash where the saved workflow briefly
appears before being replaced. After loading, the template and source
query parameters are removed from the URL using router.replace to
prevent the template from re-loading on page refresh. This preserves
user work by keeping both workflows open in separate tabs and matches
the existing behavior when clicking templates from the dialog. All 15
tests pass including 3 new tests for URL cleanup.
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6593-fix-improve-template-URL-loading-UX-and-prevent-re-triggering-2a26d73d36508137a0cae6cf92c842fc)
by [Unito](https://www.unito.io)
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Co-authored-by: Christian Byrne <c.byrne@comfy.org>
## Summary
Adds support for loading templates via URL query parameters. Users can
now share direct links to templates.
To test:
1. checkout this branch
2. start dev server on port 5173
3. go to http://localhost:5173/?template=image_qwen_image_edit_2509
**Examples:**
- `/?template=default` - Loads template with default source
- `/?template=flux_simple&source=custom` - Loads from custom source
Includes error handling with toast notifications for invalid templates
and comprehensive test coverage.
---------
Co-authored-by: Christian Byrne <c.byrne@comfy.org>
