[Bug 2100775] Re: python3-minimal wants to install twice when installing amd64 and arm64 packages

[Alexandre Bique]

Logs:

```
apt install -y     libpulse-dev:amd64     libpulse-dev:arm64

WARNING: apt does not have a stable CLI interface. Use with caution in
scripts.

Reading package lists...
Building dependency tree...
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 python3 : PreDepends: python3-minimal (= 3.12.3-0ubuntu2) but it is not going to be installed
           Depends: python3.12 (>= 3.12.3-0~) but it is not going to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
```

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https://bugs.launchpad.net/bugs/2100775

Title:
  python3-minimal wants to install twice when installing amd64 and arm64
  packages

Status in python3-defaults package in Ubuntu:
  New

Bug description:
  When adding the ports repository to cross compile from amd64 to arm64,
  some arm64 dependencies tries to install python3-minimal:arm64 which
  conflicts with the already installed python3-minimal:amd64.

  I suspect this is a packaging mistake as 22.04 didn't have this issue
  and I've noticed this in 24.04.

  I believe some packages should have a virtual dependency on
  python3-minimal without specifying which architecture it uses right?

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