fix: preserve a live resize when serializing missing-node placeholders

src/lib/litegraph/src/LGraphNode.test.ts

@@ -100,6 +100,43 @@ describe('LGraphNode', () => {
     expect(Array.from(node.size)).toEqual([70, 80])
   })
 
+  describe('missing-node placeholder serialization', () => {
+    function createPlaceholder(): LGraphNode {
+      const lastSerialization = getMockISerialisedNode({
+        type: 'UninstalledNodeType',
+        pos: [100, 100],
+        size: [140, 60],
+        widgets_values: [512]
+      })
+      const placeholder = new LGraphNode('')
+      placeholder.last_serialization = lastSerialization
+      placeholder.has_errors = true
+      placeholder.configure(lastSerialization)
+      return placeholder
+    }
+
+    test('carries the live pos and size through to the replayed serialization', () => {
+      const placeholder = createPlaceholder()
+      placeholder.pos = [999, 888]
+      placeholder.size = [777, 666]
+
+      const serialized = placeholder.serialize()
+
+      expect(serialized.pos).toEqual([999, 888])
+      expect(serialized.size).toEqual([777, 666])
+    })
+
+    test('still replays the fields it has no definition to regenerate', () => {
+      const placeholder = createPlaceholder()
+      placeholder.size = [777, 666]
+
+      const serialized = placeholder.serialize()
+
+      expect(serialized.type).toEqual('UninstalledNodeType')
+      expect(serialized.widgets_values).toEqual([512])
+    })
+  })
+
   test('should configure inputs correctly', () => {
     const node = new LGraphNode('TestNode')
     node.configure(

src/lib/litegraph/src/LGraphNode.ts

@@ -1061,7 +1061,12 @@ export class LGraphNode
 
     // special case for when there were errors
     if (this.constructor === LGraphNode && this.last_serialization)
-      return { ...this.last_serialization, mode: o.mode, pos: o.pos }
+      return {
+        ...this.last_serialization,
+        mode: o.mode,
+        pos: o.pos,
+        size: o.size
+      }
 
     if (this.inputs)
       o.inputs = this.inputs.map((input) => inputAsSerialisable(input))

src/lib/litegraph/src/__snapshots__/LGraph.test.ts.snap

@@ -34,6 +34,10 @@ exports[`LGraph > supports schema v0.4 graphs > oldSchemaGraph 1`] = `
         10,
         10,
       ],
+      "size": [
+        140,
+        60,
+      ],
     },
   ],
   "revision": 0,