Index: /trunk/psModules/src/imcombine/pmSubtractionMatch.c
===================================================================
--- /trunk/psModules/src/imcombine/pmSubtractionMatch.c	(revision 16405)
+++ /trunk/psModules/src/imcombine/pmSubtractionMatch.c	(revision 16406)
@@ -316,8 +316,8 @@
                 }
                 psMetadataAddS32(conv1->analysis, PS_LIST_TAIL, PM_SUBTRACTION_ANALYSIS_MODE,
-                                 PS_DATA_UNKNOWN | PS_META_DUPLICATE_OK, "Subtraction kernels", mode);
+                                 PS_META_DUPLICATE_OK, "Subtraction kernels", mode);
                 if (conv2) {
                     psMetadataAddS32(conv2->analysis, PS_LIST_TAIL, PM_SUBTRACTION_ANALYSIS_MODE,
-                                     PS_DATA_UNKNOWN | PS_META_DUPLICATE_OK, "Subtraction kernels", mode);
+                                     PS_META_DUPLICATE_OK, "Subtraction kernels", mode);
                 }
                 psRegion *subRegion;