The problem can only be solved by the docker team as they didn’t release the code of docker for mac in open source yet. I’m sure their are working on it.
For the moment the only workaround for local development on mac OSX seem to be https://github.com/EugenMayer/docker-sync . I’m using it and it’s pretty stable and very fast. Lot work was done in the past days and full dual-side synchronization is almost their: https://github.com/EugenMayer/docker-sync/pull/64