--- C:/InkscapeBZR/src/2geom/sbasis_org.cpp	Wed Jul 15 17:42:02 2015
+++ C:/InkscapeBZR/src/2geom/sbasis.cpp	Wed Sep  2 05:26:36 2015
@@ -279,9 +279,11 @@ SBasis multiply_add(SBasis const &a, SBasis const
 
 */
 SBasis multiply(SBasis const &a, SBasis const &b) {
+    if(a.isZero() || b.isZero()) {
+        SBasis c(1, Linear(0,0));
+        return c;
+    }
     SBasis c(a.size() + b.size(), Linear(0,0));
-    if(a.isZero() || b.isZero())
-        return c;
     return multiply_add(a, b, c);
 }
 #endif