I just ran into this problem when I was forgetting to setup a GL context prior to calling the init code. Trying to query some info on the implementation, I found that GL functions which normally would crash the program without first retrieving valid addresses, e.g. glGetString, succeeded and the applications returns properly. This is odd, since I expected the wrapper functions generated by glLoadGen to chrash the program as well - eventually.
I'm testing this on Ubuntu 13.04.
The style is func_cpp and the version is 4.3 (core).