Dropdown error on autoFocus

[jpeter06]

Hello all,
just notice an exception when adding attribute autoFocus to the component DropDown.

Uncaught TypeError: Cannot read property 'classList' of undefined
at Function.addClass (DomHandler.js:132)
at Dropdown.onInputFocus (Dropdown.js:112)
at HTMLUnknownElement.callCallback (react-dom.development.js:100)
at Object.invokeGuardedCallbackDev (react-dom.development.js:138)
at Object.invokeGuardedCallback (react-dom.development.js:187)
at Object.invokeGuardedCallbackAndCatchFirstError (react-dom.development.js:201)
at executeDispatch (react-dom.development.js:461)
at executeDispatchesInOrder (react-dom.development.js:483)
at executeDispatchesAndRelease (react-dom.development.js:581)
at executeDispatchesAndReleaseTopLevel (react-dom.development.js:592)
at forEachAccumulated (react-dom.development.js:562)
at runEventsInBatch (react-dom.development.js:723)
at runExtractedEventsInBatch (react-dom.development.js:732)
at handleTopLevel (react-dom.development.js:4472)
at batchedUpdates$1 (react-dom.development.js:16537)
at batchedUpdates (react-dom.development.js:2131)
at dispatchEvent (react-dom.development.js:4551)
at interactiveUpdates$1 (react-dom.development.js:16592)
at interactiveUpdates (react-dom.development.js:2150)
at dispatchInteractiveEvent (react-dom.development.js:4528)
at commitMount (react-dom.development.js:8468)
at commitLifeCycles (react-dom.development.js:14298)
at commitAllLifeCycles (react-dom.development.js:15342)
at HTMLUnknownElement.callCallback (react-dom.development.js:100)
at Object.invokeGuardedCallbackDev (react-dom.development.js:138)
at invokeGuardedCallback (react-dom.development.js:187)
at commitRoot (react-dom.development.js:15481)
at completeRoot (react-dom.development.js:16496)
at performWorkOnRoot (react-dom.development.js:16440)
at performWork (react-dom.development.js:16358)
at performSyncWork (react-dom.development.js:16330)
at interactiveUpdates$1 (react-dom.development.js:16597)
at interactiveUpdates (react-dom.development.js:2150)
at dispatchInteractiveEvent (react-dom.development.js:4528)

[mert.sincan]

Fixed for next version!

Regards,