From e6c8a9e89eda7f5064e7be8f04f8520a70af9fef Mon Sep 17 00:00:00 2001
From: Teemu Suo-Anttila <tsuoanttila@users.noreply.github.com>
Date: Tue, 28 Mar 2017 10:07:00 +0300
Subject: Fix data not being sent again when adding DataGenerators (#8947)

* Fix data not being sent again when adding DataGenerators

* Fix header component detaching, revert early header cleanup
---
 server/src/main/java/com/vaadin/data/provider/DataCommunicator.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/server/src/main/java/com/vaadin/data/provider/DataCommunicator.java b/server/src/main/java/com/vaadin/data/provider/DataCommunicator.java
index c0e1d75dd2..08e11b96b5 100644
--- a/server/src/main/java/com/vaadin/data/provider/DataCommunicator.java
+++ b/server/src/main/java/com/vaadin/data/provider/DataCommunicator.java
@@ -366,6 +366,9 @@ public class DataCommunicator<T> extends AbstractExtension {
     public void addDataGenerator(DataGenerator<T> generator) {
         Objects.requireNonNull(generator, "generator cannot be null");
         generators.add(generator);
+
+        // Make sure data gets generated when adding data generators.
+        reset();
     }
 
     /**
-- 
cgit v1.2.3