tig does not display commit messages starting with certain emojis

[hvoecking]

I recently started to follow the commit message style described by styleguide-git-commit-message and using the tool commit, to create commit messages. I noticed that the emojis in the commit message are displayed correctly when using git log, but for certain emojis commit messages are not displayed at all when using tig:

Problem

$ git log --oneline
ee8b364 🐧 Fix something on Linux
9890b2f ✨ Add feature
5b821c6 🎉 Initial commit

$ tig
2017-06-27 13:32 Heye Voecking o [master] 
2017-06-27 13:30 Heye Voecking o ✨ Add feature
2017-06-27 13:30 Heye Voecking I

Environment

$ tig --version
tig version 2.2

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 17.04
Release:	17.04
Codename:	zesty