In dubbed films, what language is spoken if the character says something in the dubbed language?

For example, German and French is spoken a lot in Inglorious Basterds. In the German and French dubbed version of those films, what language would be

For example, German and French is spoken a lot in Inglorious Basterds. In the German and French dubbed version of those films, what language would be spoken in those scenes?

or:For example, German and French is spoken a lot in Inglorious Basterds. In the German and French dubbed version of those films, what language would be spoken in those scenes?

or:Usually, the dubbed version is similar to the original. Therefore, the part spoken in the dubbed language should be subbed in that language while keeping the language intact, or a sub explaining what language the character is speaking should appear below if done correctly.

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