We purge it [here](https://github.com/facebook/react/blob/b11540ccb2321aeb7259fcf0b3a38aeeea35231d/src/isomorphic/ReactDebugTool.js#L88-L89) but this code doesn’t run because of the [early exit](https://github.com/facebook/react/blob/b11540ccb2321aeb7259fcf0b3a38aeeea35231d/src/isomorphic/ReactDebugTool.js#L53-L57).

Need to fix this and add a test case to make sure we don’t regress on it.

if (__DEV__) {
      resetMeasurements();
      currentFlushNesting--;
    }
    emitEvent('onEndFlush');
  },
  onBeginLifeCycleTimer(debugID, timerType) {
    checkDebugID(debugID);
    emitEvent('onBeginLifeCycleTimer', debugID, timerType);
    if (__DEV__) {
      if (isProfiling && currentFlushNesting > 0) {
        warning(
          !currentTimerType,
          'There is an internal error in the React performance measurement code. ' +
          'Did not expect %s timer to start while %s timer is still in ' +
          'progress for %s instance.',
          timerType,
          currentTimerType || 'no',
          (debugID === currentTimerDebugID) ? 'the same' : 'another'
        );
        currentTimerStartTime = performanceNow();
        currentTimerDebugID = debugID;
        currentTimerType = timerType;
      }
    }
  },
  onEndLifeCycleTimer(debugID, timerType) {