fix: incorrect workflow loaded from draft storage on page reload

[dante01yoon]

Bug

When a user refreshes the page, a different workflow loads instead of the one they were working on.

Root Cause

Two interacting bugs in useWorkflowPersistenceV2.ts:

1. Draft cleanup removes active workflow's draft (line 124-127): Saved, unmodified workflows have their drafts removed during persistence. On reload, the session path lookup fails and fallbackToLatestDraft loads a completely different workflow.

2. Tab restoration never activates the correct workflow (line 274-277): restoreWorkflowTabsState() calls openWorkflowsInBackground() which only adds paths to the tab bar but never calls openWorkflow() on the active tab.

Reproduction

1. Open two workflows: A (saved, unmodified) as active tab, B (modified) as background tab
2. Wait for persistence debounce (512ms)
3. Refresh the page
4. Workflow B is loaded instead of A

Related Issues

• ComfyUI keeps loading no or outdated workflows on startup ComfyUI#12628
• Constantly and permanent loss of open and saved workflows ComfyUI#10225
• My workflow got overwritten by another one when computer shutted down. ComfyUI#5095
• Switching between open workflow reset the workflow to past version #5465
• [Bug]: comfyui doesn't automatically load previous workflows even 'Persist workflow state and restore on page (re)load' is enabled, after update to 0.5.8 desktop#1435
• New UI, refresh page, all workflows except active workflow disappear (saved or unsaved) #5848

┆Issue is synchronized with this Notion page by Unito