[2022] Eva Acosta grenade glitch

Hi, I found a grenade glitch using Eva Acosta.
First you use a grenade to reduce it, then you equip another loadout that contains Eva Acosta, unlike your current signature weapon.
Then when you equip the original loadout, your reduced grenades will increase to 10, even though you don't have Eva Acosta equipped.
https://imgur.com/a/r2VfGrX

I think it probably happens on all platforms.I have confirmed it on Xbox and PC.

Thank you.