Channel Blend outputs the incorrect component count when there's a comp. count mismatch between the masks and color inputs

Admin edit: Changed title. original title and post below:
Invalid Initialisation errors
I'm not sure this is related to the divide node, in fact I think it might be the channel blend node, but I am getting a lot of invalid initialisation errors in the log when trying to do things with the output of the channel blend in this case a divide..

http://pastebin.com/P5PrCvKE