Check ZSH version with zsh -v: did I made a mess?

I thought I could check my ZSH version used in macOS with zsh -v. Instead, I got a very long output which contained some shell code and I'm not sure if I made a mess with that command.

 % zsh --help | grep version
  --version  show zsh version number, then exit

 % zsh --help | grep -- '-v '
  -v    equivalent to --verbose

So you just ran another zsh process, but in a verbose mode.