jj
jj copied to clipboard
give a hard error upon redefining a built-in command
happened to notice this while working on https://github.com/martinvonz/jj/issues/2866
Checklist
If applicable:
- [x] I have updated
CHANGELOG.md
- [x] I have updated the documentation (README.md, docs/, demos/)
- [x] I have updated the config schema (cli/src/config-schema.json)
- [x] I have added tests to cover my changes