[v1.6.0] TypeError - d:\OpenNumismat\open-numismat\OpenNumismat\Collection\Collection.py:458

OpenNumismat: 1.6.0
OS: Windows 10 (10.0.15063)
Python: 3.4.4 (32bit)
Qt: 5.5.1
Locale: en

Traceback (most recent call last):
File "d:\OpenNumismat\open-numismat\OpenNumismat\Collection\HeaderFilterMenu.py", line 281, in apply
File "d:\OpenNumismat\open-numismat\OpenNumismat\Collection\Collection.py", line 426, in setFilter
File "d:\OpenNumismat\open-numismat\OpenNumismat\Collection\Collection.py", line 458, in __applyFilter
TypeError: join() takes exactly one argument (2 given)