Getting "flattenChildren" error when upgrading from 2.0.7 to 2.1.2

Hi, Any idea why I would just start getting the flattenChildren(...): Encountered two children with the same key, 'journal-menu'. error after upgrading from 2.0.7 => 2.1.2?

As far as I can tell, there’s no iteration or lists of components going on where I’m using it except for where I’m using the ContextMenuProfider.

const JournalListItem = ({item}) => {
  const journalId = item.get('Id');
  return (
    <li data-id={journalId}>
      <ContextMenuProvider id="journal-menu">
        <Link to={`/journal/${journalId}`}>{item.get('Name')}</Link>
      </ContextMenuProvider>
    </li>
  );
};

Here’s the whole message:

Warning: flattenChildren(...): Encountered two children with the same key, `journal-menu`. Child keys must be unique; when two children share a key, only the first child will be used.
    in div (created by ProxyContainer)
    in ProxyContainer

It looks like there was a ProxyContainer recently added. Could this be it adding duplicate keys, or am I just using it wrong now?

[fkhadra]

@jktravis I fixed the issue. Sorry for the inconvenience!

[fkhadra]

OMG forgot to remove the context menu from the container when it’s unmounted