Very rare I believe that was during the Japan Open 2002 (we can see it from their uniform) Trikus Haryanto/Chan Chong Ming vs Chew Choon Eng/Halim Heryanto..
I thought.. ..i can see Halim and Tri Kusharyanto...but not CCM and CCE...Must be somewhat of an exhibition match??..Btw, did you take that pic, ants??..
It was an exhibition match to replace the men's doubles final (Chew/Chan won by default) in order to not disappoint the crowd. It was supposed to be an all-Malaysian final (against Choong/Lee). However one of them was was injured so Trikus/Halim stepped in and then they swapped partners. That is what I recall.
What a gesture . You think any of the pampered "pros" these days would be generous enough to offer? They obviously don't think about the paying public.
i doubt we know all that's going on behind the scenes, only the rumors. But i would be that most out there would be kind enough to do so if asked.