Git commits in Moodle 3.9.7 by Alexander Bias

commit bab8ea6608d219f62b8d53c67369fc7cef1bb4a0
Author: Alexander Bias <alexander.bias@uni-ulm.de>
Date:   Fri, 05 Mar 2021 18:31:58 +0800
Tag:    v3.9.7

MDL-71059 repository_contentbank: set default returntype