docker tag -f deprecated in v.1.12.x

[breezykermo]

It looks like docker tag -f image/name newImage/name has changed to docker tag image/name newImage/name in the beta version of Docker 1.12.x. Just raising this as an issue because it prevented me from running any docker-compose.yml files, as it automatically overwrites the tag with the name of the current directory.

[shin-]

Closing - after a quick look through the code, it doesn't seem like we call tag anywhere in the Compose codebase (but maybe we used to?)