false warning about "'Tab' outside 'TabList'" when using Immutable seq

import React from 'react';
import { OrderedMap } from 'immutable';
import { Tabs, Tab, TabList, TabPanel } from 'react-tabs';

const tabData = OrderedMap({
  one: '1',
  two: '2',
  three: '3',
});

export default function Test() {
  return <div>
    <Tabs>
      <TabList>
        {
          // This line triggers `Failed prop type: Found a 'Tab' component outside of the 'TabList' component. 'Tab' components have to be inside the 'TabList' component.`
          tabData.keySeq().map(key => <Tab key={key}>{key}</Tab>)
          // If change to use toArray() or toList(), the warning disappears.
          // tabData.keySeq().toArray().map(key => <Tab key={key}>{key}</Tab>) // no warning
          // tabData.keySeq().toList().map(key => <Tab key={key}>{key}</Tab>)  // no warning
        }
      </TabList>

      {
        tabData.entrySeq().map(([key, value]) => <TabPanel key={key}>{value}</TabPanel>)
      }
    </Tabs>
  </div>;
}

Start by running the JSX reproduction with Immutable OrderedMap and react-tabs, then compare keySeq().map() with the toArray() and toList() variants shown in the issue. Trace the warning about Tab outside TabList and identify why only the Immutable sequence form triggers it. Done means the keySeq() example renders without the false warning while the tab panels still work.