Problem with toJS(getIn(...)) - from version 5.0.0

[imbr]

Error message:

TypeError: _toJS is undefined
ConnectedRouter/_this.unsubscribe<
C:/Users/..../test/node_modules/connected-react-router/lib/ConnectedRouter.js:105

  102 | _this.unsubscribe = context.store.subscribe(function () {
  103 |   // Extract store's location
  104 |   var _toJS = toJS(getIn(context.store.getState(), ['router', 'location'])),
> 105 |       pathnameInStore = _toJS.pathname,
      | ^  106 |       searchInStore = _toJS.search,
  107 |       hashInStore = _toJS.hash; // Extract history's location
  108 | 

React version: ^16.6.1
connected-react-router version: >= 5.0.0

Additional comments:
connected-react-router version 4.5.0, with the same React configuration works completely correctly.

[mattvague]

Probably related to this: #175

[actraiser]

5.0.0 works fine here though.
The "TypeError: _toJS is undefined" Error comes up when I upgrade to 5.0.1.

-act