v0.0.443 fix wmo.List with pageSize==0

wmo/queryList.go

@@ -14,6 +14,10 @@ func (c *Coll[TData]) List(ctx context.Context, filter ct.Filter, pageSize *int,
 		return make([]TData, 0), ct.End(), nil
 	}
 
+	if pageSize != nil && *pageSize == 0 {
+		return make([]TData, 0), inTok, nil // fast track, we return an empty list and do not advance the cursor token
+	}
+
 	pipeline := mongo.Pipeline{}
 	pf1 := "_id"
 	pd1 := ct.SortASC