replace with $(FileDir) appears broken

[w4hnsinn]

Inserting $(FileDir) in the target field seems to insert nothing, see: http://i.imgur.com/v6pifSg.jpg

in fact it appears to remove any additional character in front, as seen in this example attempt without regexp: http://i.imgur.com/wF0FLpU.jpg

• In both these examples, the files were in the root of drive F, but I did also try with a deeper directory path, same problem
• this is v4 Alpha with the (highly appreciated) x64 context menu patch by Mr Pischedda