container image reports an incorrect version

[eskultety]

If one runs cachi2 --version in context of the distributed container image, the version string is incorrect and it's incorrect on 2 fronts:

1. There's no trace of the actual tag that the image was built from whatsoever

$ podman run -it quay.io/konflux-ci/cachi2:0.20.0 --version
***cachi2 0.0.post1+g86764ba.d20250204***

2. For locally built images with podman it's just the post-release string that shouldn't even be there because the image was built from a particular tagged commit, so there is no post-release/post-tag commit other than the one we're building from

$ podman run -it localhost/cachi2:0.18.0 --version
cachi2 0.18.0.post0+g06180db6.d20250205

[eskultety]

To add a bit more context and confusion as well, if one tries to install a given tag simply with pip locally without building a container image, everything works as expected:

$ pip install .
...
Successfully installed cachi2-0.20.0
$ cachi2 --version
cachi2 0.20.0

At this point I don't know what's happening in the background with setuptools-scm that it misbehaves during container builds, but works fine with plain python builds/installs in local dev environments.