this ALMOST happened...

[bainsey]

I'm going to defer to someone who knows the FIBA rules, because I can only answer your question based on NFHS here in the U.S., and the approach is quite different. Our approach has more to do with the order that fouls and double fouls happen, as opposed to the weight they carry.

The way I see it, in one case, you have a common foul, followed by a double technical foul. In another case, you have an intentional foul (that's the best NFHS equivalent I see), followed by a double technical. Either way, the double T goes to "point of interruption." Both players would get technical fouls, which would count as team fouls, and we'd pick up where we left off...
*for the common foul during a made shot: one free throw.
*for the intentional foul: two free throws (lane spaces empty), and throw-in at the nearest spot of the foul.