The autocomplete overflows on mobile

[numman-ali]

Hi,

The autosuggest at
https://material-ui.com/demos/autocomplete/

Overflows out of the screen when you select multiple countries on mobile, instead of expanding downwards.

I'm not great at css, could someone perhaps suggest a solution to this?

Thanks

[oliviertassinari]

This issue was also reported by @henkvhest in #12307 (comment).