Ensure to call putCheckpoint for nested graphs

Author: dqbd

libs/langgraph/src/pregel/loop.ts

@@ -843,8 +843,8 @@ export class PregelLoop {
         // or a nested graph with error or interrupt
         error !== undefined ||
         // or a nested graph with checkpointer: true
-        this.checkpointNamespace.every(
-          (part) => !part.includes(CHECKPOINT_NAMESPACE_END)
+        this.checkpointNamespace.some((part) =>
+          part.includes(CHECKPOINT_NAMESPACE_END)
         ))
     ) {
       this._putCheckpoint(this.checkpointMetadata);