--- ray/doc/notes/ReleaseNotes	2013/08/08 05:26:55	1.220
+++ ray/doc/notes/ReleaseNotes	2013/08/29 15:37:15	1.221
@@ -1887,3 +1887,7 @@ tree reduction in genBSDF.  (Thanks to A.McNeil for di
 Fixed bug in isotropic tensor tree sampling for impinging rays
 exactly normal to surface.  Thanks to Peter Apian-Bennewitz for
 discovering and pointing out the error.
+
+Fixed double-counting bug in mirror material with alternate type.
+Thanks to David Geisler-Moroder for spotting the problem and helping
+to fix it.