Here is the access_log entry:
192.168.69.115 - - [27/Jun/2015:14:45:22 -0700] "GET
/clickcart/?app=ecom&ns=catshow&ref=books HTTP/1.1" 200 30062
It looks like "%r" is already part of the default LogFormat. (Is
there a way to see what that format is?)
The presence of "/clickcart/" implies that the rewrite section was
ignored, and the fallback "Redirect /catalog/
https://sma-v3.sma.com/clickcart/" was invoked.