I have found an annoying problem with UITableView when it is in the `insetGrouped` style. When implementing `contextMenuConfigurationForRowAtIndexPath` method, it allows to peek-and-pop cell preview with context actions. Everything works fine except the feature when iOS rounds corners of the preview window.

[![Corners are not rounded](https://i.stack.imgur.com/nPhd0.png)](https://i.stack.imgur.com/nPhd0.png)

But corners become rounded if the table in every other style (plain, for example). Also animation in plain mode is more "smooth" and preview is scaled down a little bit.

[![Corners are rounded](https://i.stack.imgur.com/ijQY6.png)](https://i.stack.imgur.com/ijQY6.png)

I also found out that iOS rounds top corners for the first cell and bottom corners for the last cell in the `insetGrouped` style.

Has anyone encountered similar behavior of `UITableView`?