Month/Year popover taking focus off the input and calendar.

[GrantShiels]

Occuring on version 2.4.1.

When using v-date-picker with :popover="{ visibility: 'focus'} then changing the month/year via the month/year popover the focus is taken off the slotted input and the v-date-picker meaning that the component loses focus when the mouse navigates away from the picker, behaving as if :popover="{ visibility: 'hover'}.

Code pen with working example of the issue here: https://codepen.io/grantshiels/pen/MWMVQdL

See the gif below for a better example: