However, I copied the end of the title string:
irb(main):005:0> "⛳️".codepoints
=> [9971, 65039]
65039 is https://codepoints.net/U+FE0F which I believe shouldn’t be here.
If I copy the emoji from https://emojipedia.org/flag-in-hole/ and add it to the end of the title, save, and then edit and copy the end of the string:
irb(main):009:0> "⛳".codepoints
=> [9971]
So far my best guess it the macOS emoji picker is doing something it shouldn’t? Can you take a screen of what you see exactly please ? I might have a mac not on sierra, will try tomorrow.
Also I found this Some emojis ending with `\ufe0f` are not completely matched · Issue #28 · mathiasbynens/emoji-regex · GitHub which tend to go in my direction