Components don't show up in library search because of emojis in the names?

I have a component library of icons, the names all start with an emoji. Example: :round_pushpin:zoom.

When I was searching for it in another file, where this library was activated, there was no results when I searched “zoom”. I had to add the emoji to my search for it to show up.

There are other icons that has - or _ in their names, the word after -/_ would work in search. Example: :round_pushpin:zoom_out, and this icon showed up in the result when I searched “out”, but not “zoom”.

Is this a bug?