bugfix: sporadic hash traversal error

Don't modify header hash in place while traversing with #each, because
apparently that's a problem for Ruby. But only sometimes.

Based on a patch by Rick Tessner <rick.tessner@gmail.com>.

diff --git a/lib/sup/message.rb b/lib/sup/message.rb
index e01e24582b7b99510f0ebfa8f857fff6b78cf8e2..0ac34fd4e36de2b02734ba867727368181f671d2 100644 (file)
--- a/lib/sup/message.rb
+++ b/lib/sup/message.rb
@@ -64,7 +64,7 @@ class Message
   end
 
   def parse_header header
-    header.each { |k, v| header[k.downcase] = v }
+    header.keys.each { |k| header[k.downcase] = v } # canonicalize
 
     fakeid = nil
     fakename = nil