https://bugs.winehq.org/show_bug.cgi?id=48151
--- Comment #7 from Timur ttyusupov@gmail.com --- Created attachment 65808 --> https://bugs.winehq.org/attachment.cgi?id=65808 Entering Cyrillic letters using custom copy of "Russian - PC" keyboard layout.
I've created a custom copy of the "Russian - PC" standard keyboard layout using instruction from https://superuser.com/a/665726. Recorded a log using this custom layout to enter the same letters (this also produced '?' in the input field).