1 files changed, 7 insertions, 0 deletions
diff --git a/src/com/vaadin/ui/AbstractSelect.java b/src/com/vaadin/ui/AbstractSelect.java
index 60dfea0da2..30842dae2d 100644
--- a/src/com/vaadin/ui/AbstractSelect.java
+++ b/src/com/vaadin/ui/AbstractSelect.java
@@ -901,7 +901,14 @@ public abstract class AbstractSelect extends AbstractField implements
                 }
             }
 
+            /*
+             * We expect changing the data source should also clean value. See
+             * #810, #4607, #5281
+             */
+            setValue(null);
+
             requestRepaint();
+
         }
     }