[dw-free] some poll votes send numerous repeat notifications

[fu]

[commit: http://hg.dwscoalition.org/dw-free/rev/4b6fedbcf117]

http://bugs.dwscoalition.org/show_bug.cgi?id=3196

Hush warning.

Patch by kareila.

Files modified:

• cgi-bin/LJ/Poll.pm

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diff -r 97837011e5e2 -r 4b6fedbcf117 cgi-bin/LJ/Poll.pm
--- a/cgi-bin/LJ/Poll.pm	Wed Nov 24 19:34:01 2010 +0800
+++ b/cgi-bin/LJ/Poll.pm	Wed Nov 24 19:34:56 2010 +0800
@@ -1437,6 +1437,9 @@ sub process_submission {
             }
         }
 
+        # if $val is still undef here, set it to empty string
+        $val = "" unless defined $val;
+
         # see if the vote changed values
         my $changed = 1;
 
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