[AutoComplete] Allow chosenRequestText to be passed as a prop

[mwildehahn]

Description

Somewhat related to:
#4241
#2615

I don't want the AutoComplete field to persist the text value from whatever was selected. I display Chips after the user has selected something using the AutoComplete component. After a value is selected, I want the AutoComplete value to be cleared.

I was setting the value to an empty string in onNewRequest but then this is overridden by chosenRequestText.

I propose that we add a getChosenRequestText function that can be passed as a property, the default value can be the current chosenRequestText function. This keeps the existing functionality as well as allows someone like me to pass in a function that always returns an empty string.

[oliviertassinari]

I don't want the AutoComplete field to persist the text value from whatever was selected.

I'm migrating the conversation to #2615 as I believe it's the root of the issue.
Thanks for raising it.