Recursively resolve allOfs in parameter schemas

Fixes swagger-api#927

scripts/directives/tryoperation.js

@@ -286,6 +286,33 @@ SwaggerEditor.controller('TryOperation', function($scope, formdataFilter,
     return model;
   }
 
+  /**
+   * Resolves all of `allOf` recursively in a schema
+   * @description
+   * if a schema has allOf it means that the schema is the result of mergin all
+   * schemas in it's allOf array.
+   *
+   * @param {object} schema - JSON Schema
+   *
+   * @return {object} JSON Schema
+  */
+  function resolveAllOf(schema) {
+    if (schema.allOf) {
+      schema = _.assign.apply(null, [schema].concat(schema.allOf));
+      delete schema.allOf;
+    }
+
+    if (_.isObject(schema.properties)) {
+      schema.properties = _.keys(schema.properties)
+      .reduce(function(properties, key) {
+        properties[key] = resolveAllOf(schema.properties[key]);
+        return properties;
+      }, {});
+    }
+
+    return schema;
+  }
+
   /**
    * Fills in empty gaps of a JSON Schema. This method is mostly used to
    * normalize JSON Schema objects that are abstracted from Swagger parameters
@@ -300,12 +327,7 @@ SwaggerEditor.controller('TryOperation', function($scope, formdataFilter,
       schema.title = schema.name;
     }
 
-    // if a schema has allOf it means that the schema is the result of mergin all
-    // schemas in it's allOf array.
-    if (schema.allOf) {
-      schema = _.assign.apply(null, [schema].concat(schema.allOf));
-      delete schema.allOf;
-    }
+    schema = resolveAllOf(schema);
 
     // if schema is missing the "type" property fill it in based on available
     // properties