fix(instance): plain: true should take array includes into account

lib/instance.js

@@ -180,8 +180,14 @@ module.exports = (function() {
         return this._customGetters[key].call(this, key);
       }
       if (options && options.plain && this.options.include && this.options.includeNames.indexOf(key) !== -1) {
+        if (Array.isArray(this.dataValues[key])) {
+          return this.dataValues[key].map(function (instance) {
+            return instance.get({plain: options.plain});
+          });
+        } else {
           return this.dataValues[key].get({plain: options.plain});
         }
+      }
       return this.dataValues[key];
     }
 
@@ -200,7 +206,13 @@ module.exports = (function() {
       for (_key in this.dataValues) {
         if (!values.hasOwnProperty(_key) && this.dataValues.hasOwnProperty(_key)) {
           if (options && options.plain && this.options.include && this.options.includeNames.indexOf(_key) !== -1) {
+            if (Array.isArray(this.dataValues[_key])) {
+              values[_key] = this.dataValues[_key].map(function (instance) {
+                return instance.get({plain: options.plain});
+              });
+            } else {
               values[_key] = this.dataValues[_key].get({plain: options.plain});
+            }
           } else {
             values[_key] = this.dataValues[_key];
           }
@@ -298,7 +310,7 @@ module.exports = (function() {
       } else {
         // Check if we have included models, and if this key matches the include model names/aliases
 
-        if (this.options.include && this.options.includeNames.indexOf(key) !== -1 && value) {
+        if (this.options && this.options.include && this.options.includeNames.indexOf(key) !== -1 && value) {
           // Pass it on to the include handler
           this._setInclude(key, value, options);
           return;
@@ -332,7 +344,7 @@ module.exports = (function() {
               // Bit fields are returned as buffers
               value = value[0];
             }
-            value = _.isString(value) ? !!parseInt(value) : !!value;
+            value = _.isString(value) ? !!parseInt(value, 10) : !!value;
           }
 
           if (!options.raw && originalValue !== value) {