fixed parameters duplicated when there is a form content type along with a non form content type on request body schema.

Author: HugoMario

src/main/java/io/swagger/codegen/v3/generators/DefaultCodegenConfig.java

@@ -4377,8 +4377,11 @@ protected void addParameters(CodegenContent codegenContent, List<CodegenParamete
 
     protected void addCodegenContentParameters(CodegenOperation codegenOperation, List<CodegenContent> codegenContents) {
         for (CodegenContent content : codegenContents) {
-            addParameters(content, codegenOperation.bodyParams);
-            addParameters(content, codegenOperation.formParams);
+            if (content.getIsForm()) {
+                addParameters(content, codegenOperation.formParams);
+            } else {
+                addParameters(content, codegenOperation.bodyParams);
+            }
             addParameters(content, codegenOperation.headerParams);
             addParameters(content, codegenOperation.queryParams);
             addParameters(content, codegenOperation.pathParams);