Duplicate level index when using continuum interaction

[AlexHls]

Describe the bug

When enabling continuum interactions duplicate level indices appear (see screenshot), causing TARDIS to crash during the re-indexing process tardis/plasma/properties/transition_probabilities.py:362

Currently #2443 implements a bandaid fix that throws a warning. Once Carsus implemented a fix upstream, this warning should be removed and an exception should be raised instead.

To Reproduce

Screenshots

System

• OS:

  • GNU/Linux
  • macOS

• Environment (conda list):

Additional context

[chvogl]

Should be dealt with in Carsus (see carsus#384).

[AlexHls]

This should stay open as a reminder to remove the warning added in #2443 once Carsus fixed the problem, and instead raise an exception. I edited the issue to reflect that.

[chvogl]

Is this not what #2444 is for?

[AlexHls]

Nevermind, I forgot about that one.