Index: trunk/psModules/src/concepts/pmConcepts.c
===================================================================
--- trunk/psModules/src/concepts/pmConcepts.c	(revision 13500)
+++ trunk/psModules/src/concepts/pmConcepts.c	(revision 13703)
@@ -948,5 +948,19 @@
                 continue;
             }
-            targetCell->concepts = psMetadataCopy(targetCell->concepts, sourceCell->concepts);
+
+            psMetadataIterator *iter = psMetadataIteratorAlloc(sourceCell->concepts, PS_LIST_HEAD, NULL);
+            psMetadataItem *item;       // Item from iteration
+            while ((item = psMetadataGetAndIncrement(iter))) {
+                psMetadataItem *new;    // New item, a copy of the old
+                // Don't copy TRIMSEC or BIASSEC
+                if (strcmp(item->name, "CELL.TRIMSEC") != 0 && strcmp(item->name, "CELL.BIASSEC")) {
+                    new = psMetadataItemCopy(item);
+                } else {
+                    new = psMetadataItemAlloc(item->name, item->type, item->comment, NULL);
+                }
+                psMetadataAddItem(targetCell->concepts, new, PS_LIST_TAIL, PS_META_REPLACE);
+                psFree(new);        // Drop reference
+            }
+            psFree(iter);
         }
     }