Operational point search: clear filters does not work

[flomonster]

What happened?

When the user clear the "Name" field it also clear the "CH" field without removing the text.

What did you expect to happen?

We expect each clear button to clear only the associated input text.

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

1. Fill the search and clear the "name" (or "CH") field.
   

Caution

Both field are cleared, even if the CH text remains.

1. Refill the name
   

Caution

The CH field is considered empty even if the text "bv" still here.

On which environments the bug occurs?

Local

On which browser the bug occurs?

Firefox

OSRD version (top right corner Account button > Informations)

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