https://codesandbox.io/s/elastic-mayer-rzz4h2?file=/package.json

This is supposed to `console.error` but it doesn't.

17 warns: https://codesandbox.io/s/admiring-minsky-sze07m?file=/src/App.js
currentPendingTransitionCallbacks = {
        transitionStart: [],
        transitionComplete: null,
      };
    }
    if (currentPendingTransitionCallbacks.transitionStart === null) {
      currentPendingTransitionCallbacks.transitionStart = [];
    }
    currentPendingTransitionCallbacks.transitionStart.push(transition);
  }
}
export function addTransitionCompleteCallbackToPendingTransition(
  transition: TransitionObject,
) {
  if (enableTransitionTracing) {
    if (currentPendingTransitionCallbacks === null) {
      currentPendingTransitionCallbacks = {
        transitionStart: null,
        transitionComplete: [],
      };
    }
    if (currentPendingTransitionCallbacks.transitionComplete === null) {
      currentPendingTransitionCallbacks.transitionComplete = [];
    }
    currentPendingTransitionCallbacks.transitionComplete.push(transition);
  }
}
function resetRenderTimer() {
  workInProgressRootRenderTargetTime = now() + RENDER_TIMEOUT_MS;
}