Train schedules with one path step handled weirdly

[maelysLeratRosso]

What happened?

I have an imported train with only one step : train_schedules (17).json
I see the corresponding step twice, which makes me think that I have twice the same step, which is not the same

Furthermore, if I click on the blue cross to correct the origin for example, both steps are erased

What did you expect to happen?

I guess I would except to have only the origin filled with the corresponding step, and an undefined arrival, but it can be discussed

How can we reproduce it (as minimally and precisely as possible)?

Import the previous train

On which environments the bug occurs?

Dev (SNCF)

On which browser the bug occurs?

Google Chrome

OSRD version (top right corner Account button > Informations)

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