I'm working on debugging an issue that seems similar to the nested hash bug with

__defaults__

. defaults functionality does not seem to work with

docker_image.cache_from

. https://github.com/pantsbuild/pants/pull/18787 https://github.com/pantsbuild/pants/issues/18784 I'm attempting to set the default value of

cache_from

for all

docker_image

targets. But it constantly fails with

InvalidFieldTypeException

due to being converted to a tuple of FrozenDict when it's expecting a list. I suspect this failure is due to something that field does under the hood. It seems to take either a list of dicts or just a dict. It probably converts the dict to a list of dicts, but something about that breaks with

__deafult__

. I apologize for not posting the exact errors or commands. I don't have slack on the machine where I'm doing the exploring. I'm also still testing so I could be doing something wrong.

It's hard to say without a reproducible example

I'll try to get one created soon. I'm bouncing around my pants exploration so much right now.