Request: Double-story variant of italic a

[pancaek]

Having the option to toggle single vs. double story a in italics would be awesome for a bit more control. (I almost exclusively use Serif, I am unsure if this would apply to other variants) Brill for example has this option, and it's a concept I'd love to see in Libertinus.

[KrasnayaPloshchad]

This may could be encoded in U+A79B.