T3-852 Fixed error when saving localworker configurations.

git-svn-id: http://taverna.googlecode.com/svn/taverna/ui/net.sf.taverna.t2.ui-activities/trunk/localworker-activity-ui@16331 bf327186-88b3-11dd-a302-d386e5130c1c
diff --git a/src/main/java/net/sf/taverna/t2/activities/localworker/views/LocalworkerActivityConfigView.java b/src/main/java/net/sf/taverna/t2/activities/localworker/views/LocalworkerActivityConfigView.java
index 353f94e..155c631 100644
--- a/src/main/java/net/sf/taverna/t2/activities/localworker/views/LocalworkerActivityConfigView.java
+++ b/src/main/java/net/sf/taverna/t2/activities/localworker/views/LocalworkerActivityConfigView.java
@@ -31,11 +31,12 @@
 		super(activity, applicationConfiguration);
 	}
 
-	public void noteConfiguration() {
-		if (isConfigurationChanged()) {
-			super.noteConfiguration();
+	public boolean isConfigurationChanged() {
+		boolean configurationChanged = super.isConfigurationChanged();
+		if (configurationChanged) {
 			getJson().put("isAltered", true);
 		}
+		return configurationChanged;
 	}
 
 }