After clicking the textarea popup inserted by the demo button I get this:
this.updater.enqueueCallback is not a function
at TeXBlock.ReactComponent.setState (ReactBaseClasses.js:66)
at TeXBlock._this.onClick (TeXBlock.js:48)
"draft-js": "^0.10.1",
"draft-js-katex-plugin": "^1.0.0",
"draft-js-plugins-editor": "^2.0.0-rc5",
"react": "^16.0.0-beta.5",