room person limit no longer works after version 0.8.12

[dounai2333]

everything just like the title, and it works fine until version 0.8.12.

[cso2]

#85 I think it's the same problem as this issue.

[leang97]

Some think of this being a feature. If the system works without crashes, it is fine for me.

[Luís Leite]

Should be fixed in b568cf2