Installing fonts-symbola (2.60-1 on focal) does not fix the problem for me.
Can be be reproduced by running:
git init testrepo cd testrepo git commit --allow-empty -m 💎 gitk
Installing fonts-symbola (2.60-1 on focal) does not fix the problem for me.
Can be be reproduced by running:
git init testrepo
cd testrepo
git commit --allow-empty -m 💎
gitk