fix

git-svn-id: svn+ssh://svn.internal.sanger.ac.uk/repos/svn/pathsoft/artemis/trunk@6956 ee4ac58c-ac51-4696-9907-e4b3aa274f04

uk/ac/sanger/artemis/chado/ChadoTransactionManager.java

@@ -1679,6 +1679,9 @@ public class ChadoTransactionManager
           qualifierString, old_qualifier_strings))
         return;
       
+      if(qualifierString.equals(""))
+        return;
+      
       logger4j.debug(uniquename+"  in handleReservedTags() INSERT "+qualifierName+" "+
           qualifierString);