[AlexBreems]

I have found a way out (bold font):

public event_death() {
new id = read_data(2)
if (!(get_pcvar_num(g_pcvar_state) & FLAG_DEAD) || !(get_pcvar_num(g_pcvar_teams) & FLAG_CT) || !cs_get_user_defuse(id))
return

if (CONTAIN_FLAG_OF_INDEX(get_pcvar_num(g_pcvar_allow ), DEFUSER))
return

cs_set_user_defuse(id, 0)
set_pev(id, pev_body, 0) // backward compatibility
set_task(0.1, "task", id)
}

public task(id) {
cs_set_user_defuse(id, 1)
}