Is this a bug? I have

instructions

set to a list and

source=None

in a

docker_image

target, but I'm getting an error like "provides both a Dockerfile with the

source

field, and Dockerfile contents with the

instructions

field, which is not supported.". To fix, it's saying to set

source=None

or

instructions=None

. When I do

source=''

, things are happy.

had the same issue https://github.com/pantsbuild/pants/issues/17571