I show UITableViewController in popover
custom cell has UITextField
when UITextField becomes the first responder then displaying virtual keyboard causes to change popover arrow position and popover content is blinking
it happens only if popoverPresentationController.permittedArrowDirections is UIPopoverArrowDirectionLeft or UIPopoverArrowDirectionRight
I could not see such behavior in iOS 12, it happens only in iOS 13
I captured a video of blinking with slow animation
is there a way to avoid such blinking?
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