Issue828 - log message printing the wrong exchange.

[petersilva]

• closes log message after_post prints reception exchange instead of transmission. #828

@andreleblanc11 ran into a case where it became obvious that when a component is subscribing and republishing, the post message prints the name of the exchange the message was received from, rather than the one it was posted to.

[andreleblanc11]

Weird that so many of the flow tests are failing..

The changes look good. I'm not sure why you've added 09c769f#diff-b63c7bafd4f6cea2e9dab58f12ac8113a0b60da6f12077c3680506c56cb89d1eR684

[petersilva]

what part of the commit is mysterious? ...

• the exchange to be posted to isn't just the direct result of a "post_exchange" setting, if post_exchange_split is active, it will pick a different exchange, guided by message content.
• So rather than use the setting self.o.post_exchange, set a private variable (a header that will not be forwarded) in the message to say where we actually published the message: message['post_exchange']
• have the log routine use that.

[andreleblanc11]

Yes you're right. I've skimmed by the changes too quickly.. oops

[petersilva]

OK, @andreleblanc11 blessed it so merging.