QFileDialog.getFileNames returns incorrect/inconsistent between single and multiple selections

If you use QFileDialog.getFileNames() to select a single file with a '#' in its name it returns the file name & path correctly. Ie selecting a file called "#123.xml" returns a list with one item "#123.xml"

However, use QFileDialog.getFileNames() to select multiple files with at lease one file with a '#' in its name and it returns the file name & path incorrectly. Ie selecting a file called "#123.xml" and a file called "abc.xml" returns a list with two items "%23123.xml" & "abc.xml" (Note the # has been changed in to a %23. Possible url encoding?)

See http://pastebin.com/QcmkNcSk for example code. (Sorry, its in Python)