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Fix #1729497 [Error when clicking Configure in Get books screen](https://bugs.launchpad.net/calibre/+bug/1729497)
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@ -663,6 +663,7 @@ class HistoryLineEdit(QComboBox): # {{{
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self.setEditable(True)
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self.setInsertPolicy(self.NoInsert)
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self.setMaxCount(10)
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self.setClearButtonEnabled = self.lineEdit().setClearButtonEnabled
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def setPlaceholderText(self, txt):
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return self.lineEdit().setPlaceholderText(txt)
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