Index: trunk/psModules/src/objects/pmSourceIO_MatchedRefs.c
===================================================================
--- trunk/psModules/src/objects/pmSourceIO_MatchedRefs.c	(revision 26392)
+++ trunk/psModules/src/objects/pmSourceIO_MatchedRefs.c	(revision 26893)
@@ -163,4 +163,5 @@
 
     // try find the MATCHED_REFS extension.  if non-existent, note that we tried, and move on.
+    // It is not an error to lack this entry -- psFitsMoveExtNameClean does not raise an error
     if (!psFitsMoveExtNameClean (fits, "MATCHED_REFS")) {
 	psMetadataAddBool (fpa->analysis, PS_LIST_TAIL, "READ.REFMATCH", PS_META_REPLACE, "attempted to read MATCHED_REFS", true);