problem in 2.8 multi-DB

Hello

I, used multi -DB

my websiteis Persian language.

May, when I upgraded to 2.8.2

And multi-DB version 2.8

Problematic

Text available in the database can not be displayed properly Shomoti

For example, instead of "????" "????" Is shown

When I use 2.7.5-BETA problem was

To assist me whole.