Letter 🅱️ prints as ¥ in MacVim (but not in terminal Vim or less)

Try typing 🅱️ (or opening a text file with that in it) in MacVim. It will display it as ¥.

If you inspect the character with :ascii you see it is the correct character in the status line, albeit it displayed as the text version of the emoji. Writing the file correctly writes it as 🅱️, it just displays as ¥.

Opening it with Vim on Terminal.app displays it correctly, as does with less.

Here's my MacVim version

VIM - Vi IMproved 8.1 (2018 May 18, compiled Aug  8 2018 18:09:39)
macOS version
Included patches: 1-235
Compiled by Homebrew

I use font Menlo.

Here's my Vim version (it's the same one)

vim --version
VIM - Vi IMproved 8.1 (2018 May 18, compiled Aug  8 2018 18:09:39)
macOS version
Included patches: 1-235
Compiled by Homebrew

I'm running on macOS High Sierra version 10.13.6 (17G65).

Inizia riproducendo il problema di visualizzazione in MacVim su macOS High Sierra con il carattere Menlo, quindi confronta la stessa emoji in Terminal Vim e less. Usa :ascii e un file salvato per verificare che il carattere rimanga corretto; il lavoro è completato quando 🅱️ viene visualizzato come emoji invece di ¥ senza modificare il carattere scritto.