Reland "Fix undo / redo filling with empty steps" (#1653)

* Revert "Revert "Fix undo / redo filling with empty steps (#1649)" (#1652)"

This reverts commit 7623810166.

* Update test expectations

* Add dirty flag if workflow is not persisted

* Add dirty flag to other UI areas for new workflows

* Remove redundant code

* Fix regression: undo / redo steps lost on refresh

The history is still be cleared, but any changes made by issuing undo / redo comands prior to refresh are not lost.

* Update test expectations

Partially reverts f8cc2c0d67 - adds dirty flags back to unsaved workflows.

---------

Co-authored-by: filtered <176114999+webfiltered@users.noreply.github.com>

browser_tests/browserTabTitle.spec.ts

@@ -11,7 +11,7 @@ test.describe('Browser tab title', () => {
       const workflowName = await comfyPage.page.evaluate(async () => {
         return window['app'].extensionManager.workflow.activeWorkflow.filename
       })
-      expect(await comfyPage.page.title()).toBe(`${workflowName} - ComfyUI`)
+      expect(await comfyPage.page.title()).toBe(`*${workflowName} - ComfyUI`)
     })
 
     // Failing on CI

browser_tests/changeTracker.spec.ts

@@ -56,9 +56,7 @@ test.describe('Change Tracker', () => {
       expect(await comfyPage.getToastErrorCount()).toBe(0)
       expect(await isModified()).toBe(false)
 
-      // TODO(huchenlei): Investigate why saving the workflow is causing the
-      // undo queue to be triggered.
-      expect(await getUndoQueueSize()).toBe(1)
+      expect(await getUndoQueueSize()).toBe(0)
       expect(await getRedoQueueSize()).toBe(0)
 
       const node = (await comfyPage.getFirstNodeRef())!
@@ -66,25 +64,25 @@ test.describe('Change Tracker', () => {
       await node.click('collapse')
       await expect(node).toBeCollapsed()
       expect(await isModified()).toBe(true)
-      expect(await getUndoQueueSize()).toBe(2)
+      expect(await getUndoQueueSize()).toBe(1)
       expect(await getRedoQueueSize()).toBe(0)
 
       await comfyPage.ctrlB()
       await expect(node).toBeBypassed()
       expect(await isModified()).toBe(true)
-      expect(await getUndoQueueSize()).toBe(3)
+      expect(await getUndoQueueSize()).toBe(2)
       expect(await getRedoQueueSize()).toBe(0)
 
       await comfyPage.ctrlZ()
       await expect(node).not.toBeBypassed()
       expect(await isModified()).toBe(true)
-      expect(await getUndoQueueSize()).toBe(2)
+      expect(await getUndoQueueSize()).toBe(1)
       expect(await getRedoQueueSize()).toBe(1)
 
       await comfyPage.ctrlZ()
       await expect(node).not.toBeCollapsed()
       expect(await isModified()).toBe(false)
-      expect(await getUndoQueueSize()).toBe(1)
+      expect(await getUndoQueueSize()).toBe(0)
       expect(await getRedoQueueSize()).toBe(2)
     })
   })

browser_tests/menu.spec.ts

@@ -394,7 +394,7 @@ test.describe('Menu', () => {
       await tab.newBlankWorkflowButton.click()
       expect(await tab.getOpenedWorkflowNames()).toEqual([
         '*Unsaved Workflow.json',
-        'Unsaved Workflow (2).json'
+        '*Unsaved Workflow (2).json'
       ])
     })
 
@@ -471,6 +471,7 @@ test.describe('Menu', () => {
       const topbar = comfyPage.menu.topbar
       await topbar.saveWorkflow('workflow1.json')
       await topbar.saveWorkflowAs('workflow2.json')
+      await comfyPage.nextFrame()
       expect(
         await comfyPage.menu.workflowsTab.getOpenedWorkflowNames()
       ).toEqual(['workflow1.json', 'workflow2.json'])
@@ -519,7 +520,7 @@ test.describe('Menu', () => {
       await closeButton.click()
       expect(
         await comfyPage.menu.workflowsTab.getOpenedWorkflowNames()
-      ).toEqual(['Unsaved Workflow.json'])
+      ).toEqual(['*Unsaved Workflow.json'])
     })
   })