backdrop bug fix
@@ -61,7 +61,7 @@ class BackdropSizer(QtWidgets.QGraphicsItem):
def mouseReleaseEvent(self, event):
current_xy = (self.pos().x(), self.pos().y())
- if current_xy != self._prev_xy:
+ if current_xy != self.__prev_xy:
item = self.parentItem()
item.on_sizer_pos_mouse_release()
del self.__prev_xy
