Git commits in Moodle 3.9.0 by Andreas Grabs

commit 20fea5522c715d1223f32d7e22aa829c209a80de
Author: Andreas Grabs <moodle@grabs-edv.de>
Date:   Sat, 08 Feb 2020 01:47:37 +0800
Tag:    v3.9.0-beta

MDL-67894 mod_feedback: database error on show responses

commit 5385f5a8af48ed42865167c399fc124cdff2b2c7
Author: Andreas Grabs <moodle@grabs-edv.de>
Date:   Thu, 17 Oct 2019 15:33:05 +0800
Tag:    v3.9.0-beta

MDL-66938 mod_feedback: Export includes unwanted html in field names