Fixed #3019

CHANGELOG-v3.md

@@ -17,6 +17,7 @@
 - Fixed a bug where passing `timezone=false` to the `|date`, `|time`, and `|datetime` filters would not preserve the given date’s time zone.
 - Fixed a bug where AM/PM strings in formatted dates weren’t respecting the casing specified by the `A`/`a` character in the date format. ([#3007](https://github.com/craftcms/cms/issues/3007))
 - Fixed a bug you could get an invalid license warning in cases where web API calls returned a 500 response code.
+- Fixed a bug where custom field params were getting forgotten when calling `getNext()` and `getPrev()`, if an element query object was passed in. ([#3019](https://github.com/craftcms/cms/issues/3019))
 
 ## 3.0.12 - 2018-06-18
 

src/base/Element.php

@@ -2155,7 +2155,13 @@ private function _getRelativeElement($criteria, int $dir)
         }
 
         if ($criteria instanceof ElementQueryInterface) {
+            /** @var ElementQuery $criteria */
             $query = clone $criteria;
+
+            // clone its behaviors too (https://github.com/yiisoft/yii2/issues/16247)
+            foreach ($criteria->getBehaviors() as $name => $behavior) {
+                $query->attachBehavior($name, clone $behavior);
+            }
         } else {
             $query = static::find()
                 ->siteId($this->siteId);