We didn't have a fourth player for some time so we switched from riichi to three player version with korean\japanese rules as described on Wiki (I guess that's the most popular version for 3 players).
Used to doras in riichi we played with one revealed dora. But I didn't find there what do do if a flower tile is revealed as dora.
Shuffling whole set again in this case seems too much so we decided that every flower sholds add one more bonus point. Is this right or is there some other commonly used rule?