How else are you going to render a sequence such as Emoji ZWJ Emoji other than as two glyphs, if no composed glyph is defined in the user's font? That's how it'

How else are you going to render a sequence such as Emoji ZWJ Emoji other than as two glyphs, if no composed glyph is defined in the user's font? That's how it's supposed to be rendered, for backwards compatibility.