Renderer should be able to render arbitrarily large characters

[AmitMY]

The following is a single characters, with lots of additions on top of it with different unicode features.
It should be correctly rendered, and not cut
This is obviously an edge case.

GitHub sanitizes the character... here's a pastebin https://pastebin.com/CZxCkKUh
and a video: https://www.loom.com/share/0581520cd2a04c7998b30abb152bf0c7