now it should properly refresh data in the existing object

modules/Bio/EnsEMBL/Hive/DBSQL/AnalysisStatsAdaptor.pm

@@ -124,15 +124,23 @@ sub fetch_by_statuses {
 }
 
 
+=head2 refresh
+
+  Arg [1]    : Bio::EnsEMBL::Hive::AnalysisStats object
+  Description: reload the AnalysisStats object from the database
+  Returntype : Bio::EnsEMBL::Hive::AnalysisStats object - same one with reloaded data
+
+=cut
+
+
 sub refresh {
-  my ($self, $stats) = @_;
+    my ($self, $stats) = @_;
 
-  my $constraint = "ast.analysis_id = " . $stats->analysis_id;
+    my $new_stats = $self->fetch_by_analysis_id( $stats->analysis_id );     # fetch into a separate object
 
-  #return first element of _generic_fetch list
-  $stats = @{$self->_generic_fetch($constraint)};
+    %$stats = %$new_stats;                                                  # copy the data over
 
-  return $stats;
+    return $stats;
 }