Expected behavior
I expect !**… directives to result in these files being copied to the resulting image.
Actual behavior
These files are not copied.
Information
Docker for Mac: version: mac-v1.12.0-beta17
OS X: version 10.11.5 (build: 15F34)
logs: /tmp/20160704-195104.tar.gz
[OK] docker-cli
[OK] app
[OK] menubar
[OK] virtualization
[OK] system
[OK] osxfs
[OK] db
[OK] slirp
[OK] moby-console
[OK] logs
[OK] vmnetd
[OK] env
[OK] moby
[OK] driver.amd64-linux
Reproducible case: GitHub - vshih/dockerignore-test: Docker bug report test case.
Steps to reproduce the behavior
Clone GitHub - vshih/dockerignore-test: Docker bug report test case., build and run.