Index: trunk/psastro/src/psastroChooseRefstars.c
===================================================================
--- trunk/psastro/src/psastroChooseRefstars.c	(revision 35419)
+++ trunk/psastro/src/psastroChooseRefstars.c	(revision 35715)
@@ -20,5 +20,5 @@
 }
 
-bool psastroChooseRefstars (pmConfig *config, psArray *refs, const char *source) {
+bool psastroChooseRefstars (pmConfig *config, psArray *refs, const char *source, bool saveExistingMatchedRefs) {
 
     bool status;
@@ -55,5 +55,7 @@
 	// analysis.  however, we are re-doing the astrometry here, so remove
 	// that prior set of matched references
-	psMetadataRemoveKey (fpa->analysis, "MATCHED_REFS");
+        if (!saveExistingMatchedRefs) {
+            psMetadataRemoveKey (fpa->analysis, "MATCHED_REFS");
+        }
     }