fix: don't show users threads he may not access via /all
fix: don't show users threads he may not access via /all

MatthiasApsel/cforum,CountOrlok/cforum,MatthiasApsel/cforum,ckruse/cforum,ckruse/cforum,ckruse/cforum,CountOrlok/cforum,MatthiasApsel/cforum,ckruse/cforum,MatthiasApsel/cforum,CountOrlok/cforum,CountOrlok/cforum