Fix closing saved workflows

[christian-byrne]

During save of a new workflow:

ComfyUI_frontend/src/scripts/workflows.ts

Lines 407 to 410 in 0117964

	// Saved new workflow, patch this instance
	this.updatePath(path, null)
	await this.manager.loadWorkflows()
	this.unsaved = false

The ComfyWorkflow instance's path is updated then loadWorkflows is called. In loadWorkflows:

ComfyUI_frontend/src/scripts/workflows.ts

Lines 71 to 75 in 0117964

	files.forEach((file: UserDataFullInfo) => {
	let workflow = this.workflowLookup[file.path]
	if (!workflow) {
	workflow = new ComfyWorkflow(this, file.path, file.path.split('/'))
	this.workflowLookup[workflow.path] = workflow

This if block triggers, since the ComfyWorkflow instance has not been remapped to its new path in workflowLookup. So a new instance is created instead of just patching and remapping the existing one. The new instance is closed by default so trying to close it in tab or sidebar does nothing.

[huchenlei]

LGTM! Thanks for fixing this!