This is the exact reason I am against CLAs. Relicensing. You give me your work under the conditions of the GPL, then I as a contributor want to do the same. If

This is the exact reason I am against CLAs. Relicensing. You give me your work under the conditions of the GPL, then I as a contributor want to do the same. If relicensing is allowed you could just close up your source code and even though I contributed GPL code I could do nithing against it.