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Fix #1832780 [Error when changing libraries](https://bugs.launchpad.net/calibre/+bug/1832780)

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Kovid Goyal 2019-06-14 08:40:20 +05:30
parent 408990ffd8
commit 5a4ca12432
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1 changed files with 4 additions and 0 deletions
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4
src/calibre/gui2/bars.py
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@ -390,7 +390,11 @@ if isosx:
self.clone_menu() self.clone_menu()
def about_to_show(self): def about_to_show(self):
if sip.isdeleted(self.clone):
return
cm = self.clone.menu() cm = self.clone.menu()
if cm is None:
return
before = list(QMenu.actions(cm)) before = list(QMenu.actions(cm))
cm.aboutToShow.emit() cm.aboutToShow.emit()
after = list(QMenu.actions(cm)) after = list(QMenu.actions(cm))