I have set my password manager to lock after a few minutes to improve security. I might have a login selected prior to the vault locking in a folder. However, if I have selected a folder, and then the vaults locks, when I log back in, it resets the view back as if I have just logged back in (ie no folder selected). This is an annoying feature, and it hinders flow. I choose to be secure and now I have to spend extra time every time the vault unlocks to get back to where I was.
I am not sure why this is a thing? I want you to lock the UI, not reset it. This is akin to your OS, when you unlocked it from the lock screen had closed all the applications you had open.
This should be a trivial change. Even if it was an option to select would be good.