Context Menu Position and Preview Fade

By default, when using Context Menu the menu will flip positions to be above or below the content based on the current screen position. Many apps however, tend to keep the menu anchored to the bottom of the content it is associated with and move the content up to fit the menu (iMessage messages for example). In order to get this behavior, where the menu is always anchored to the bottom and the content "shifts up" to make space you have to use a custom preview by passing a previewProvider. So to get the desired behavior you can use a preview that is the same content as the original view. However, when you do this there is a small fade in animation that gets added and since the content of the original view and preview is the same this appears as a flicker. Is there any way to disable this fade animation or force anchor the menu to the bottom when using the standard preview?

Context Menu Position and Preview Fade
 
 
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