Closing this as this is not a bug.
A workaround exists and there is no "complete loss of databases".
See:
https://jira.mariadb.org/browse/MDEV-11170?focusedCommentId=106653=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-106653
** Changed in: mariadb-10.0 (Ubuntu)
Hi,
thank you taking the time to report this bug and helping to make Ubuntu better.
As explained by Elena Stepanova on
https://jira.mariadb.org/browse/MDEV-11170?page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel=90592:
>There is nothing for Ubuntu to be ashamed of.
>It's