check that autogenerated peptide name is unique

git-svn-id: svn+ssh://svn.internal.sanger.ac.uk/repos/svn/pathsoft/artemis/trunk@12420 ee4ac58c-ac51-4696-9907-e4b3aa274f04

uk/ac/sanger/artemis/io/ChadoCanonicalGene.java

@@ -966,7 +966,10 @@ public class ChadoCanonicalGene
       
       String name = (String)getGene().getQualifierByName("ID").getValues().get(0);
 
+      if(isUniqueName(name+ "." + transcript_number + ":pep"))
         return name+ "." + transcript_number + ":pep";
+      else
+        return name + "." + transcript_number + "a:pep";
     }
     catch(InvalidRelationException e)
     {