I bisected the MariaDB source tree and found out that this commit fixed the issue:
40497577ffd9f85557b15e08ad913f627b2e9530 - it is related to this: https://jira.mariadb.org/browse/MDEV-6450
I bisected the MariaDB source tree and found out that this commit fixed the issue:
40497577ffd9f85 557b15e08ad913f 627b2e9530 - it is related to this: https:/ /jira.mariadb. org/browse/ MDEV-6450