We have site in russian language in windows-1251 codepage and all working fine except internal site serch keywords.

E.g. when I try to find ‘окрб’ this keyword turns to url encoded ‘q=%EE%EA%F0%E1’ and then in database it turns to some wierd encoded string ’ îêðá’.

There is small 2-HTML page site (windows-1251) where the problem can be reproduced:
test.zip

Matomo 3.11.0
Thanks!