fix: updating object includes unchanged keys in client response for certain key types (#8159)

src/RestWrite.js

@@ -12,6 +12,7 @@ var passwordCrypto = require('./password');
 var Parse = require('parse/node');
 var triggers = require('./triggers');
 var ClientSDK = require('./ClientSDK');
+const util = require('util');
 import RestQuery from './RestQuery';
 import _ from 'lodash';
 import logger from './logger';
@@ -1677,18 +1678,24 @@ RestWrite.prototype._updateResponseWithData = function (response, data) {
       this.storage.fieldsChangedByTrigger.push(key);
     }
   }
-  const skipKeys = [
-    'objectId',
-    'createdAt',
-    'updatedAt',
-    ...(requiredColumns.read[this.className] || []),
-  ];
+  const skipKeys = [...(requiredColumns.read[this.className] || [])];
+  if (!this.query) {
+    skipKeys.push('objectId', 'createdAt');
+  } else {
+    skipKeys.push('updatedAt');
+    delete response.objectId;
+  }
   for (const key in response) {
     if (skipKeys.includes(key)) {
       continue;
     }
     const value = response[key];
-    if (value == null || (value.__type && value.__type === 'Pointer') || data[key] === value) {
+    if (
+      value == null ||
+      (value.__type && value.__type === 'Pointer') ||
+      util.isDeepStrictEqual(data[key], value) ||
+      util.isDeepStrictEqual((this.originalData || {})[key], value)
+    ) {
       delete response[key];
     }
   }