[request-tracker-maintainers] Bug#732910:

[Otto Kekäläinen]

All occurrences of mysql-server in depends, recommends or suggests
should be replaced with:

mysql-server | virtual-mysql-server

..as announced by James Page in Misc Developer News #37
(https://lists.debian.org/debian-devel-announce/2014/11/msg00015.html).

Alternatively, if you prefer MariaDB, then the line could say:

  Depends/Recommends/Suggests: mariadb-server | virtual-mysql-server