TableTooltip has shouldComponentUpdate but is a React.PureComponent

[LuAPi]

I've just started getting warnings like

Warning: t has a method called shouldComponentUpdate(). shouldComponentUpdate should not be used when extending React.PureComponent. Please extend React.Component if shouldComponentUpdate is used.
warningWithoutStack	@	[email protected]?….1&m=1566991803:500
checkClassInstance	@	[email protected]?…&m=1566991803:11401
mountClassInstance	@	[email protected]?…&m=1566991803:11598
.....

I based on the warning message think I tracked it down to shouldComponentUpdate being defined in:
https://github.com/plotly/dash-table/blob/master/src/dash-table/components/ControlledTable/fragments/TableTooltip.tsx#L26

Given that that code is 7 months old and I've not seen that warning before I'm not sure if it's something I've done to upset the system or if I got a newer version of something when I rebuilt my app's container. Since I'm not sure I thought I should open an issue rather than make a PR to change the React.PureComponent to a React.Component like the warning says to.

Edit:
After reporting another issue I noticed that when rebuilding my docker container I updated to the new dash 1.2.0.