[question] upload_policy = "skip" breaks skipping binaries?

[db4]

What is your question?

Looks like upload_policy = "skip" attribute in a non-visible dependency doesn't work as one would expect: Conan builds a binary package that should be skipped. The test case is attached. When pkg3 is built pkg1 binary should be skipped, but it's built from sources due to upload_policy = "skip" in pkg1.
test_case.zip

Have you read the CONTRIBUTING guide?

• I've read the CONTRIBUTING guide

[memsharded]

Hi @db4

Thanks for your report.
It seems there could be a gap, or at least some undefinition in the behavior of this case. Your test case really helped to reproduce, thanks very much for putting it together.

I am checking it, seeing what possibilities of improvements are possible, I'll update here.

[memsharded]

I am exploring in this draft #15336 a possible solution

[memsharded]

Closed by #15336, it will be in next 2.1