Wrong behaviour of draft editor when quick typing (using cypress)

bug When typing text in a div with role='textbox', it's not going to be handled correctly. First letter goes to newly created block but rest of the text is going directly to the div.

current behavior video recording screenshot

steps to reproduce run in cypress (tool to run GUI tests)

describe('Draft tests', function(){

    it('Should type in one line', function(){
        cy.visit('https://draftjs.org')
            .get('.public-DraftEditor-content')
            .wait(1000)
            .type('Text in one line ')
            .wait(3000)
    })
})

expected behavior Text should be in one line and whole in one div.

version of Draft.js 0.10.3

browser / OS Chrome 62, macOS 10.12.6