[SimonItaly]

You may handle it internally from the plugin.

Код:

int called_OnPlayerSteamIn = 0;

somethingincplusplus YSF_OnPlayerSteamIn(int playerid)
{
    if(!called_OnPlayerSteamIn)
    {
         called_OnPlayerSteamIn = 1;
         ...

But I don't know if there's another more elegant way to do this.