Fix crash with plurals

Julien LepillerFri Aug 23 20:17:18+0200 2019

6141919

Fix crash with plurals

offlate/ui/editor.py

169169 
        if self.msgstr.__class__.__name__ == "SpellCheckEdit":
170170 
            self.msgstr.clearFocus()
171171 
        else:
172-
            self.msgstr.currentWidget.clearFocus()
172+
            self.msgstr.currentWidget().clearFocus()
173173 
        data = current.data(0, Qt.UserRole)
174174 
        self.hbox.removeWidget(self.msgid)
175175 
        self.hbox.removeItem(self.buttons)