Git commits in Moodle 3.5.6 by Zoltán Szarvas

commit 638ba355971eedff5ffb7d73d36866682efcc3a0
Author: Zoltán Szarvas <zoltan.szarvas@neting.hu>
Date:   Mon, 04 Feb 2019 23:24:22 +0800
Tag:    v3.5.6

MDL-63959 mod_feedback: Fixed nested dependency handling