bugfix: invite_delete caused exception

1 files changed, 1 insertions, 1 deletions

diff --git a/poll.rb b/poll.rb
index ac58ae6..b54249e 100644
--- a/poll.rb
+++ b/poll.rb
@@ -254,7 +254,7 @@ END
 			name = "Anonymous ##{maximum + 1}"
 		end
 		htmlname = CGI.escapeHTML(name)
-		@data.delete(CGI.escapeHTML($edituser))
+		@data.delete(CGI.escapeHTML($edituser)) if $edituser
 		$edituser = htmlname
 		@data[htmlname] = {"timestamp" => Time.now }
 		@head.each_key{|columntitle|