Don't die in resizestring() on filter(<func>, "").

diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index ea3d30ddee313f1a3a54467b9eae1ed442b8eaaf..c337f1c1cbc4f414be73e8a9e358bf4a266b0549 100644 (file)
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -1735,7 +1735,7 @@ filterstring(func, strobj)
                                GETSTRINGVALUE((stringobject *)item)[0];
        }
 
-       if (resizestring(&result, j) < 0)
+       if (j < len && resizestring(&result, j) < 0)
                return NULL;
 
        return result;