We've been relying (rightly or wrongly) on putting system.serviceModel changes into devenv.exe.config for some extensions that we have in an attempt to re-use the same configuration approach for our client apps and our development tools. In Visual Studio 2012 this seems to have been broken.
I notice that there is now a devenv.exe.config in the AppData folder. Can anyone explain how this re-org of exe config files works, the reasons behind it and an easy way to load XML config for WCF clients within Visual Studio 2012?