Build 1539 - version-patch

Author: pipedrive-bot

CHANGELOG.md

@@ -7,6 +7,19 @@ The file format of it is based on [Keep a Changelog](http://keepachangelog.com/e
 For public Changelog covering all changes done to Pipedrive’s API, webhooks and app extensions platforms, see [public Changelog](https://pipedrive.readme.io/docs/changelog) with discussion area in [Developers Community](https://devcommunity.pipedrive.com/c/documentation/changelog/19).
 
 ## [Unreleased]
+### Changed
+- Updated endpoint descriptions to warn about permanently removing deleted entities:
+  - `DELETE /activities`
+  - `DELETE /activities/{id}`
+  - `DELETE /deals`
+  - `DELETE /deals/{id}`
+  - `DELETE /files/{id}`
+  - `DELETE /organizations`
+  - `DELETE /organizations/{id}`
+  - `DELETE /persons`
+  - `DELETE /persons/{id}`
+  - `DELETE /products/{id}`
+- Updated `conditions` parameter description for `POST /filters` and `PUT /filters/{id}`
 
 ## 17.5.2
 ### Changed

src/ApiClient.js

@@ -568,7 +568,8 @@ class ApiClient {
         for (const key in obj) {
             let keyValue = obj[key];
             const isArray = Array.isArray(keyValue);
-            const isObject = typeof keyValue === 'object' && !isArray;
+            const isNull = keyValue === null;
+            const isObject = typeof keyValue === 'object' && !isArray && !isNull;
             const isHash = /^[a-f0-9]{40}$|^[a-f0-9]{40}_[a-z0-9]+$/i.test(key);
 
             if (isArray) keyValue = keyValue.map(kv => typeof kv === 'object' ? this.replaceCamelCaseObj(kv) : kv);