Here's a simple snippet to illustrate:
I just whipped up an AIR app that should make it easier for people who don't have a Turkish keyboard but need to occasionally type in Turkish to use Turkish characters. Yes, it's a niche app :)
If you start getting the following error, "A valid signing identity matching this profile could not be found in your keychain", Adobe AIR may be to blame.
AIR apparently can change the default keychain and this breaks XCode's provisioning. The fix is to set the login keychain as default using Keychain Access.