Git commits in Moodle 3.9.4 by Huong Nguyen

commit 479b0f0eaa7b5857c9dfcdad5f6d7cecc072b7c8
Author: Huong Nguyen <huongnv13@gmail.com>
Date:   Tue, 08 Dec 2020 17:04:09 +0800
Tag:    v3.9.4

MDL-70426 qtype_ddmarker: infinite markers keep duplicating


commit 81c2fe97a3e3515ed439aabf537cbf854408934e
Author: Huong Nguyen <huongnv13@gmail.com>
Date:   Wed, 18 Nov 2020 17:09:05 +0800
Tag:    v3.9.4

MDL-70248 qtype_ddimageortext: Drop zones have UI issue in Editing form


commit 0d9c49d8d639803efdca1b5d2fe623b8aee0cb1c
Author: Huong Nguyen <huongnv13@gmail.com>
Date:   Mon, 02 Nov 2020 10:54:22 +0800
Tag:    v3.9.4

MDL-69955 qtype_ddimageortext: drop zone disappear in special case


commit ad7b38f3ff22e926d29db388a5f1cf9d62ba8521
Author: Huong Nguyen <huongnv13@gmail.com>
Date:   Sun, 25 Oct 2020 21:13:39 +0800
Tag:    v3.9.4

MDL-69930 qtype_ddimageortext: Duplication items in drag-onto-image question


commit ea684078959e2732278ec44e989fef56c0dabfb4
Author: Huong Nguyen <huongnv13@gmail.com>
Date:   Mon, 19 Oct 2020 16:17:11 +0800
Tag:    v3.9.4

MDL-69841 Quiz: Review options 'Help' icons do not work correctly