"Title Case" option doesn't work? about notepad2-mod HOT 2 OPEN

Edit ▷ Convert ▷ Title Case (Ctrl+Alt+I) does not work for upper case words.

Input:
TEST TEXT

Result:
TEST TEXT

Expected Result:
Test Text

Steps to reproduce:

1. type text in upper case
2. select upper case text
3. apply Edit ▷ Convert ▷ Title Case (Ctrl+Alt+I)

Notepad2-mod (64-bit) 4.2.25 r972 (68b1190)

from notepad2-mod.

System/library limitation/design?

Converts the specified string to title case (except for words that are entirely in uppercase, which are considered to be acronyms).

Maybe in the future it’ll be smarter, but for now it just uppercases the first letter in a group of letters, and tries to pay attention to non-letters and word breaks. It also tries to keep acronyms all upper-case.

https://msdn.microsoft.com/en-us/library/windows/desktop/dd318700(v=vs.85).aspx
https://blogs.msdn.microsoft.com/shawnste/2009/08/18/what-is-title-case/
http://stackoverflow.com/questions/1206019/converting-string-to-title-case-in-c-sharp
https://msdn.microsoft.com/en-us/library/system.globalization.textinfo.totitlecase(v=vs.110).aspx

from notepad2-mod.