[v1.8.2] AttributeError - /usr/lib/python3/dist-packages/OpenNumismat/PageView.py:363

OpenNumismat: 1.8.2
OS: Linux 4.4.0-128-generic (#154~14.04.1-Ubuntu SMP Fri May 25 14:58:51 UTC 2018)
Python: 3.4.3 (64bit)
Qt: 5.2.1
Locale: es

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/OpenNumismat/PageView.py", line 376, in itemActivatedEvent
self.scrollToItem(current)
File "/usr/lib/python3/dist-packages/OpenNumismat/PageView.py", line 363, in scrollToItem
parentItem = item.parent()
AttributeError: 'NoneType' object has no attribute 'parent'