Descriptive Problem Summary:
Search in Cyrillic is always case-sensitive.

Numbered Steps to Reproduce Problem:
1. Create a new .dm file.
2. Enter some cyrillic text. Like "Спасибо за обнову".
3. Try to search the code for "спасибо" with 'Match case' option unselected.

Expected Results:
The string is found.

Actual Results:
"Pattern not found"

When does the problem NOT occur?
When search string's case matches the original ("Спасибо" instead of "спасибо")