fix: Make it pass tests again

Signed-off-by: Marcel Klehr <[email protected]>

lib/Db/BookmarkMapper.php

@@ -269,7 +269,7 @@ private function _generateCTE(int $folderId, bool $withSoftDeleted = false) : ar
 			->selectAlias($baseCase->createFunction($this->getDbType() === 'mysql'? 'cast(0 as UNSIGNED)' : 'cast(0 as BIGINT)'), 'parent_folder')
 			->selectAlias($baseCase->createFunction($this->getDbType() === 'mysql'? 'cast('.$baseCase->createPositionalParameter(TreeMapper::TYPE_FOLDER).' as CHAR(20))' : 'cast('.$baseCase->createPositionalParameter(TreeMapper::TYPE_FOLDER).' as TEXT)'), 'type')
 			->selectAlias($baseCase->createFunction($this->getDbType() === 'mysql'? 'cast(0 as UNSIGNED)' : 'cast(0 as BIGINT)'), 'idx')
-			->selectAlias($baseCase->createFunction('NULL'), 'soft_deleted_at');
+			->selectAlias($baseCase->createFunction($this->getDbType() === 'mysql'? 'cast(NULL as DATETIME' : 'cast(NULL as timestamp)'), 'soft_deleted_at');
 
 		// The first recursive case lists all children of folders we've already found
 		$recursiveCase = $this->db->getQueryBuilder();