fix generic databinding

Project: http://git-wip-us.apache.org/repos/asf/flex-asjs/repo
Commit: http://git-wip-us.apache.org/repos/asf/flex-asjs/commit/7df60521
Tree: http://git-wip-us.apache.org/repos/asf/flex-asjs/tree/7df60521
Diff: http://git-wip-us.apache.org/repos/asf/flex-asjs/diff/7df60521

Branch: refs/heads/develop
Commit: 7df60521d537e9d9d17f02208738e0723b6f87cc
Parents: 207359d
Author: Alex Harui <[email protected]>
Authored: Thu Jan 15 16:17:47 2015 -0800
Committer: Alex Harui <[email protected]>
Committed: Fri Jan 23 12:24:04 2015 -0800

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 .../FlexJSUI/src/org/apache/flex/binding/PropertyWatcher.as   | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/flex-asjs/blob/7df60521/frameworks/as/projects/FlexJSUI/src/org/apache/flex/binding/PropertyWatcher.as
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diff --git 
a/frameworks/as/projects/FlexJSUI/src/org/apache/flex/binding/PropertyWatcher.as
 
b/frameworks/as/projects/FlexJSUI/src/org/apache/flex/binding/PropertyWatcher.as
index bb8ee4e..9f73139 100644
--- 
a/frameworks/as/projects/FlexJSUI/src/org/apache/flex/binding/PropertyWatcher.as
+++ 
b/frameworks/as/projects/FlexJSUI/src/org/apache/flex/binding/PropertyWatcher.as
@@ -142,13 +142,18 @@ package org.apache.flex.binding
             if (source && source is IEventDispatcher)
                 removeEventListeners();
 
-            source = parent;
+            if (source is PropertyWatcher)
+                source = PropertyWatcher(parent).value;
+            else
+                source = parent;
             
             if (source && source is IEventDispatcher)
                 addEventListeners();
             
             // Now get our property.
             wrapUpdate(updateProperty);
+            
+            notifyListeners();            
         }
 
         private function addEventListeners():void

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