StrictMode errors for calendar modal of DatePicker component (react 18)

[msdrigg]

🐛 Bug Report

The datepicker component errors in the console when opening the calendar chooser overlay. These errors are caused by strictmode.

First Error:

Warning: Legacy context API has been detected within a strict-mode tree.

The old API will be supported in all 16.x releases, but applications using it should migrate to the new version.

Please update the following components: Transition

Learn more about this warning here: https://reactjs.org/link/legacy-context

Second Error:

Warning: findDOMNode is deprecated in StrictMode. findDOMNode was passed an instance of Transition which is inside StrictMode. Instead, add a ref directly to the element you want to reference. Learn more about using refs safely here: https://reactjs.org/link/strict-mode-find-node
div

Otherwise, the calendar seems to be working

🤔 Expected Behavior

The calendar component should work with strict mode

😯 Current Behavior

The calendar errors internally with strict mode

💁 Possible Solution

Follow recommendations in https://reactjs.org/link/legacy-context and https://reactjs.org/link/strict-mode-find-node to resolve errors. (Sorry I'm not being more help here, I am just testing out react-spectrum so I don't have the context for making better suggestions).

🔦 Context

I am trying to use react-spectrum datepicker in a react-18 application (currently using nextjs).

🌍 Your Environment

Software	Version(s)
react-spectrum	nightly-1642
Browser	Firefox
Operating System	Windows
react	18
strictMode	on

[LFDanLu]

Going to close this out in favor of the umbrella strict mode issue: #779