ComboBoxSearch: Set focus policy

Author: ales-erjavec

Orange/widgets/utils/combobox.py

@@ -53,6 +53,7 @@ def __init__(self, *args, **kwargs):
         self.__popup = None  # type: Optional[QAbstractItemModel]
         self.__proxy = None  # type: Optional[QSortFilterProxyModel]
         self.__popupTimer = QElapsedTimer()
+        self.setFocusPolicy(Qt.ClickFocus | Qt.TabFocus)
 
     def showPopup(self):
         # type: () -> None