STD: The rectangle for the zoom rectangle soetimes stays displayed

[Arthur-Lefebvre]

What happened?

See the video

20251218-1351-39.4292911.mp4

When the rectangle is visible, when you scroll, only the manchette scroll, not the antire graph

What did you expect to happen?

The rectangle must disappear and the graph must follow the manchette

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

1. Open a scenario with a train
2. Multiple zoom rectangle until you see a rectangle that stays displayed

On which environments the bug occurs?

Recette (SNCF)

On which browser the bug occurs?

Firefox

OSRD version (top right corner Account button > Informations)

770a507