SplitviewReact rendered twice in React Strict mode

[Morcatko]

Describe the bug
SplitviewReact component is placed twice into a DOM when React StrictMode is enabled. (It works fine with non-strict mode)

To Reproduce
This is a code I have in my next.js (App Router page)

const components = {
	"panels-container": () => <div >pc</div>
};

const PageContent = () => {
	const [api, setApi] = useState<SplitviewApi>()
	const onReady = (event: SplitviewReadyEvent) => setApi(event.api);

	useEffect(() => {
		if (!api) return;
		api.addPanel({
			id: 'panels-container',
			component: 'panels-container'
		});
	}, [api]);

	console.log("PageContent");

	return <SplitviewReact
		orientation={Orientation.HORIZONTAL}
		components={components}
		onReady={onReady}
		className={`XXXXX dockview-theme-light`}
	/>
}

SplitView is correctly rendered as a 100% height component with a "pc" content however above it is an empty container with 100% height (see screenshot)
I use DockView in the same app and it works well.
If that code is not enough I will make some minimal next.js app to reproduce

Expected behavior
"dummy" instance is not created

Screenshots

Desktop (please complete the following information):
Dockview 3.2.0