Since Gerrit has been upgraded to version 3.2 (T254158) it requires
a git-review version of at least 1.27 or git-review will stop working.
The current version in stretch was just 1.25.
This first became an issue on Toolforge bastions as reported in T257496.
From there we noticed it is also installed on some stat* hosts that are still on stretch.
The package needs to be upgraded and reinstalled on these hosts or users won't be able to use git-review / gerrit.