React 19.2x introduced performance tracks cause observables to be accessed outside reaction

[ahoisl]

Intended outcome:

Use React 19.2.x with mobx in development mode and observableRequiresReaction=true without being spammed by following warnings:
[mobx] Observable 'someProp' being read outside a reactive context.

Actual outcome:

With React 19.2.0, new performance tracks were introduced that show changed props for components:
https://react.dev/reference/dev-tools/react-performance-tracks#changed-props

If observable objects are passed into components, these performance tracks cause warnings if the observableRequiresReaction is enabled:
[mobx] Observable 'someProp' being read outside a reactive context.

How to reproduce the issue:

See the following minimal reproduction sandbox:
https://codesandbox.io/p/sandbox/component-performace-tracks-mobx-warnings-c8wkwy

1. open the sandbox
2. open the dev tools console
3. click the "Next item" button
   -> see warnings logged in the console

Does not happen with same sandbox when using React 19.1.4:
https://codesandbox.io/p/sandbox/component-performace-tracks-no-warnings-ttx7gt

Versions

react 19.2.0 and higher
mobx 6.15.0 (but most probably every version)

[ahoisl]

I'm not sure this is fixable on mobx side, but rather by a switch in react.
Still I wanted to make you aware of those warnings, maybe needs a note in the docs for the observableRequiresReaction config?

I have not found a (nice) way (so without monkey patching) to disable the React performance tracks - if there was one, that would also fix the problem for me.