Fix execution output & previews not displayed (#4506)

src/stores/executionStore.ts

@@ -1,4 +1,4 @@
-import type { LGraph, Subgraph } from '@comfyorg/litegraph'
+import type { LGraph, LGraphNode, Subgraph } from '@comfyorg/litegraph'
 import { defineStore } from 'pinia'
 import { computed, ref } from 'vue'
 
@@ -24,7 +24,7 @@ import type {
 } from '@/schemas/comfyWorkflowSchema'
 import { api } from '@/scripts/api'
 import { app } from '@/scripts/app'
-import type { NodeLocatorId } from '@/types/nodeIdentification'
+import type { NodeExecutionId, NodeLocatorId } from '@/types/nodeIdentification'
 import { createNodeLocatorId } from '@/types/nodeIdentification'
 
 import { useCanvasStore } from './graphStore'
@@ -54,6 +54,22 @@ export const useExecutionStore = defineStore('execution', () => {
   // This is the progress of all nodes in the currently executing workflow
   const nodeProgressStates = ref<Record<string, NodeProgressState>>({})
 
+  /**
+   * @deprecated Workaround for Subgraph phase 1 - execution IDs may share locator IDs.
+   * The most recently executed execution ID for each node locator ID.
+   */
+  const locatorIdToExecutionIdMap = new Map<NodeLocatorId, NodeExecutionId>()
+
+  /**
+   * Get the NodeLocatorId for a node.
+   * @param node The node
+   * @returns The NodeLocatorId
+   */
+  const getNodeLocatorId = (node: LGraphNode): NodeLocatorId =>
+    node.graph?.isRootGraph
+      ? node.id.toString()
+      : [node.graph?.id, node.id].join(':')
+
   /**
    * Convert execution context node IDs to NodeLocatorIds
    * @param nodeId The node ID from execution context (could be execution ID)
@@ -468,6 +484,8 @@ export const useExecutionStore = defineStore('execution', () => {
     _executingNodeProgress,
     // NodeLocatorId conversion helpers
     executionIdToNodeLocatorId,
-    nodeLocatorIdToExecutionId
+    nodeLocatorIdToExecutionId,
+    locatorIdToExecutionIdMap,
+    getNodeLocatorId
   }
 })