发版，一些细节及小bug修改

AllBase/Model/Result/PDDFrontProductInfo3.cs

@@ -202,7 +202,7 @@ namespace AllBase.Model.Result
 			get => _specs;
 			set
 			{
-				specs = value;
+				_specs = value;
 				SpecNameStr = string.Join(",", value.Select(s => s.spec_value));
 			}
 		}