HEAD displayed as branch name when there is a git repo within a git repo

[hohmannr]

System OS: 5.6.6-arch1-1 (output of $ uname -a) Terminal: kitty 0.17.2

Reproduction

• clone any git repo into another git repo

$ git clone path.to/repo
$ cd repo
$ git clone path.to/second-repo
$ cd second-repo

Expected Behaviour Display the correct git branch for the respective repo.