Stuck nodes when loading a graph w/ a node that has a forceInput input AND loads as collapsed

[rgthree]

When loading a graph, if a node has a forceInput AND is starting collapsed, then it cannot be interacted with (dragged, un-collapsed) by clicking. (One can get to an unstuck state by using the menu to un-collapse, then it becomes draggable).

This is because the converted widget ends up with a widget.last_y of NaN upon which fails a test in litegraph.core later when attempting to interact.

FWIW, it seems like the fix is simple, at line 67 of widgetInputs.js:

If you want to keep it as undefined (which does pass litegraph's check):

	for (const widget of node.widgets) {
-		widget.last_y += LiteGraph.NODE_SLOT_HEIGHT;
+		if (typeof widget.last_y == 'number')
+			widget.last_y += LiteGraph.NODE_SLOT_HEIGHT;
	}

Or, if wanting to treat as 0 (I don't know which is preferable):

	for (const widget of node.widgets) {
-		widget.last_y += LiteGraph.NODE_SLOT_HEIGHT;
+		widget.last_y = (widget.last_y || 0) + LiteGraph.NODE_SLOT_HEIGHT;
	}