Inline rename help please

According to changelog:

If filename extensions are hidden in Lister, inline rename no longer fails to select the text after a '.' in the filename (e.g., -> .txt would be hidden, in inline rename, previously only 'test' would have been selected automatically).

How do I get this to work ?? I still see test and not when I press F2. Do I have to set it in prefs somewhere ????

Thanks in advance

You've definitely installed It works fine for me.

File called, I only see in the file list, and when I press F2 all of "" is selected as it should be.