With the attached patch that adds a naive test, I cannot reproduce on amd64 or i386.

$ mysql --version
mysql  Ver 15.1 Distrib 10.0.30-MariaDB, for OpenBSD (i386) using readline 4.3

$ mysql --version
mysql  Ver 15.1 Distrib 10.0.30-MariaDB, for OpenBSD (amd64) using readline 4.3

$ echo 'puts [info patchlevel]' | tclsh8.6
8.6.6