I yarn dev the react-example project and tried connecting a color outpin to its parent's color inpin, and got an error.

Compiled with problems:
×
ERROR
[MobX] invalid action stack. did you forget to finish an action?
at die (http://localhost:3000/bundle.js:14092:11)
at _endAction (http://localhost:3000/bundle.js:15128:5)
at executeAction (http://localhost:3000/bundle.js:15086:5)
at Output.connect (http://localhost:3000/bundle.js:15069:12)
at at.commitDraftConnection (http://localhost:3000/bundle.js:72406:1679)
at Be (http://localhost:3000/bundle.js:72394:83826)
at at.commitDraftConnection (http://localhost:3000/bundle.js:72394:83670)
at http://localhost:3000/bundle.js:72477:760
at HTMLUnknownElement.callCallback (http://localhost:3000/bundle.js:24584:14)
at Object.invokeGuardedCallbackDev (http://localhost:3000/bundle.js:24633:16)
ERROR
[MobX] invalid action stack. did you forget to finish an action?
at die (http://localhost:3000/bundle.js:14092:11)
at _endAction (http://localhost:3000/bundle.js:15128:5)
at executeAction (http://localhost:3000/bundle.js:15086:5)
at Output.connect (http://localhost:3000/bundle.js:15069:12)
at at.commitDraftConnection (http://localhost:3000/bundle.js:72406:1679)
at Be (http://localhost:3000/bundle.js:72394:83826)
at at.commitDraftConnection (http://localhost:3000/bundle.js:72394:83670)
at http://localhost:3000/bundle.js:72477:760
at HTMLUnknownElement.callCallback (http://localhost:3000/bundle.js:24584:14)
at Object.invokeGuardedCallbackDev (http://localhost:3000/bundle.js:24633:16)
ERROR
Maximum call stack size exceeded
RangeError: Maximum call stack size exceeded
at webpack_modules.../../node_modules/rxjs/dist/cjs/internal/Subscriber.js.ConsumerObserver.next (http://localhost:3000/bundle.js:56367:17)
at webpack_modules.../../node_modules/rxjs/dist/cjs/internal/Subscriber.js.Subscriber._next (http://localhost:3000/bundle.js:56331:26)
at webpack_modules.../../node_modules/rxjs/dist/cjs/internal/Subscriber.js.Subscriber.next (http://localhost:3000/bundle.js:56302:18)
at http://localhost:3000/bundle.js:56120:34
at Object.errorContext (http://localhost:3000/bundle.js:64334:9)
at webpack_modules.../../node_modules/rxjs/dist/cjs/internal/Subject.js.Subject.next (http://localhost:3000/bundle.js:56110:24)
at webpack_modules.../../node_modules/rxjs/dist/cjs/internal/ReplaySubject.js.ReplaySubject.next (http://localhost:3000/bundle.js:55982:31)
at webpack_modules.../../node_modules/rxjs/dist/cjs/internal/Subscriber.js.ConsumerObserver.next (http://localhost:3000/bundle.js:56364:33)
at webpack_modules.../../node_modules/rxjs/dist/cjs/internal/Subscriber.js.Subscriber._next (http://localhost:3000/bundle.js:56331:26)
at webpack_modules.../../node_modules/rxjs/dist/cjs/internal/Subscriber.js.Subscriber.next (http://localhost:3000/bundle.js:56302:18)