Regression: different code paths in mix compilers since 1.15

[hissssst]

Elixir and Erlang/OTP versions

This issue is about difference between versions <= 1.14 and versions >= 1.15

Current behavior

Mix tasks from dependencies return different results in 1.14 and 1.15. And it is not just different, but there is extremely important difference that in 1.14 the current app code path is present, but in 1.15 it is not

Reproduction: https://github.com/hissssst/elixir-compiler-regression

Expected behavior

Consistent decidion whether the app which is compiled has it's own code path in :code.get_path or not

[josevalim]

Thanks for the report, I will look into it.