[HUDI-5412] Send the boostrap event if the JM also rebooted (#7497) (#…

…7498)

(cherry picked from commit c637280)

hudi-flink-datasource/hudi-flink/src/main/java/org/apache/hudi/sink/common/AbstractStreamWriteFunction.java

@@ -217,8 +217,9 @@ private void sendBootstrapEvent() {
       if (this.currentInstant != null) {
         LOG.info("Recover task[{}] for instant [{}] with attemptId [{}]", taskID, this.currentInstant, attemptId);
         this.currentInstant = null;
+        return;
       }
-      return;
+      // the JM may have also been rebooted, sends the bootstrap event either
     }
     this.eventGateway.sendEventToCoordinator(WriteMetadataEvent.emptyBootstrap(taskID));
     LOG.info("Send bootstrap write metadata event to coordinator, task[{}].", taskID);