A tile that should be prohibited from being discarded immediately after declaring Riichi is mistakenly accepted

[Cryolite]

At https://mjai.app/games/78/13/1?k=6&s=34, the South player declares Riichi, but the tile they discard immediately afterward is one (7s) that is prohibited to discard right after declaring that Riichi.

[Cryolite]

Likewise: https://mjai.app/games/78/13/2?k=5&s=58

[Apricot-S]

Likewise: https://mjai.app/games/78/13/2?k=5&s=58

This discard complies with the japanese mahjong rules.

3578899m234789p Tsumo 6m

After declaring Riichi

• Discard 3m: Wait 8m, 9m
• Discard 8m: Wait 4m

[smly]

@Cryolite @Apricot-S Thank you for the comments! As you pointed out, it seems that validation of the tile discarded after a Riichi declaration is not being performed correctly.

I will fix the validation process for the first case so that it results in an error.