You bet they did
During test flights previous to 1991 Rafale flew at passed 100% AOA and 40 Kt negative speed.
This was reported by an ex-Eurofighter test-pilot, i don't have the article here but i'd gladly post it later on.
This is the result of the way they developed its aerodynamics. More to this:
According to Dassualt Rafale test pilot at the previous Paris airshow, it is capable to fly and pass an aileron roll in ANY configuration at speed as low as a 100 Kt.
No joke here. Visit their web sire andenjoy the videos, since there is an interesting view from the HUD from time to time, as well as commentaries, it maoneouvre netry speed is known.