Anyway, my language is set to Русский (Russian). When searching through the new logistic search UI or the factory search (top right), it is case sensitive to the items being matched. This probably extends to all of Cyrillic.
Russian is case-sensitive in 2.0 logistic search UI
Russian is case-sensitive in 2.0 logistic search UI
WARNING! Below are like 3 or 4 item spoilers for space age in a screenshot. I don't know how to hide images. The spoiler tag isn't working in the preview.
Re: Russian is case-sensitive in 2.0 logistic search UI
Thanks for the report. This is a known case for all languages with special letters. Duplicate of 116581.