Handling of pathnames w/ special chars in batch processing

[XnTriq]

Web browsers like Firefox percent-encode blank spaces in filenames.
If you download test archive.zip, it will be saved as test%20archive.zip locally.
7zip, WinZip, WinRAR et al. usually extract such an archive to a folder named test%20archive.

Let's say our ZIP file contains a couple of photos which we would like to convert.
In order to reproduce the bug, Use original path (as output) in Tools » Batch Processing... » General » Output has to be activated.

Expected result:

• X:\test%20archive\001.jpg » X:\test%20archive\001.png
  X:\test%20archive\002.jpg » X:\test%20archive\002.png
  X:\test%20archive\003.jpg » X:\test%20archive\003.png

Actual result:

• X:\test%20archive\001.jpg » X:\test001archive.png
  X:\test%20archive\002.jpg » X:\test002archive.png
  X:\test%20archive\003.jpg » X:\test003archive.png