fix: clean up some leftover issues with #8343

Author: vkarpov15

lib/options/SchemaDocumentArrayOptions.js

@@ -22,9 +22,9 @@ const opts = require('./propertyOptions');
 /**
  * If `true`, Mongoose will skip building any indexes defined in this array's schema.
  * If not set, Mongoose will build all indexes defined in this array's schema.
- * 
+ *
  * ####Example:
- * 
+ *
  *     const childSchema = Schema({ name: { type: String, index: true } });
  *     // If `excludeIndexes` is `true`, Mongoose will skip building an index
  *     // on `arr.name`. Otherwise, Mongoose will build an index on `arr.name`.
@@ -45,4 +45,4 @@ Object.defineProperty(SchemaDocumentArrayOptions.prototype, 'excludeIndexes', op
  * ignore
  */
 
-module.exports = SchemaArrayOptions;
+module.exports = SchemaDocumentArrayOptions;

lib/schema/documentarray.js

@@ -7,6 +7,8 @@
 const ArrayType = require('./array');
 const CastError = require('../error/cast');
 const EventEmitter = require('events').EventEmitter;
+const SchemaDocumentArrayOptions =
+  require('../options/SchemaDocumentArrayOptions');
 const SchemaType = require('../schematype');
 const discriminator = require('../helpers/model/discriminator');
 const get = require('../helpers/get');
@@ -91,6 +93,7 @@ DocumentArrayPath.options = { castNonArrays: true };
  */
 DocumentArrayPath.prototype = Object.create(ArrayType.prototype);
 DocumentArrayPath.prototype.constructor = DocumentArrayPath;
+DocumentArrayPath.prototype.OptionsConstructor = SchemaDocumentArrayOptions;
 
 /*!
  * Ignore

test/model.indexes.test.js

@@ -112,7 +112,7 @@ describe('model', function() {
       });
       const otherSchema = Schema({
         name: { type: String, index: true }
-      }, { excludeIndexes: true })
+      }, { excludeIndexes: true });
 
       const User = new Schema({
         name: {type: String, index: true},