Correctly serialize subset of shape's members when configured

Author: lauzadis

codegen/smithy-aws-kotlin-codegen/src/main/kotlin/software/amazon/smithy/kotlin/codegen/aws/protocols/core/QueryHttpBindingProtocolGenerator.kt

@@ -145,7 +145,7 @@ abstract class AbstractQueryFormUrlSerializerGenerator(
         return shape.documentSerializer(ctx.settings, symbol, members) { writer ->
             writer.openBlock("internal fun #identifier.name:L(serializer: #T, input: #T) {", RuntimeTypes.Serde.Serializer, symbol)
                 .call {
-                    renderSerializerBody(ctx, shape, shape.members().toList(), writer)
+                    renderSerializerBody(ctx, shape, members.toList(), writer)
                 }
                 .closeBlock("}")
         }

codegen/smithy-kotlin-codegen/src/main/kotlin/software/amazon/smithy/kotlin/codegen/rendering/serde/CborSerializerGenerator.kt

@@ -108,7 +108,7 @@ class CborSerializerGenerator(
         val symbol = ctx.symbolProvider.toSymbol(shape)
         return shape.documentSerializer(ctx.settings, symbol, members) { writer ->
             writer.withBlock("internal fun #identifier.name:L(serializer: #T, input: #T) {", "}", RuntimeTypes.Serde.Serializer, symbol) {
-                call { renderSerializerBody(ctx, shape, shape.members().toList(), writer) }
+                call { renderSerializerBody(ctx, shape, members.toList(), writer) }
             }
         }
     }