[cybmole]

will someone please test & confrim this:

My reproducible test sequence:
1. close calibre
2 open calibre ( so we have a clean start point)
navigate: preferences - tweaks.. scroll to save original files...
click on restore defaults then click apply ( the 2 bottom-of-screen boxes)
no reaction from program.
now go to top left & click apply
I then get :
Error: Invalid Tweaks
calibre, version 1.23.0
ERROR: Invalid tweaks: The tweaks you entered are invalid, try resetting the tweaks to default and changing them one by one until you find the invalid setting.

Traceback (most recent call last):
File "site-packages\calibre\gui2\preferences\tweaks.py", line 421, in commit
File "<string>", line 623
Qt = <class 'PyQt4.QtCore.Qt'>
^
SyntaxError: invalid syntax

NB I did not enter any data, I simply clicked on restore defaults.