fixed netstandard

Author: Jamess-Lucass

src/GoatQuery/src/Evaluator/FilterEvaluator.cs

@@ -621,7 +621,7 @@ private static Result<ConstantExpression> CreateStringOrEnumConstant(string valu
 
     private static Result<ConstantExpression> ConvertStringToEnum(string value, Type actualType, Type targetType)
     {
-        if (Enum.TryParse(actualType, value, ignoreCase: true, out var enumValue))
+        if (Enum.TryParse(actualType, value, true, out var enumValue))
         {
             return Result.Ok(Expression.Constant(enumValue, targetType));
         }

src/GoatQuery/tests/Filter/FilterTest.cs

@@ -376,6 +376,11 @@ public static IEnumerable<object[]> Parameters()
             new[] { TestData.Users["User01"], TestData.Users["User05"] }
         };
 
+        yield return new object[] {
+            "gender eq 'male'",
+            new[] { TestData.Users["User01"], TestData.Users["User05"] }
+        };
+
         yield return new object[] {
             "gender eq 'Female'",
             new[] { TestData.Users["User02"] }