Intent of completion, --get-yargs-completions, …) works if positional has no choices|occurrence=1

All 2 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=yargs@4153e0f097aeaf43a71a2530db6dda51dff2c544:main|file=test/ 2 tests
- completion.mjs|title=Completion default completion behavior calling yargs(./ 2 tests
  - mocha:v1|namespace=yargs@4153e0f097aeaf43a71a2530db6dda51dff2c544:main|file=test/completion.mjs|title=Completion default completion behavior calling yargs(./completion, --get-yargs-completions, …) completes choices for nested command|occurrence=1 Inherited completion, --get-yargs-completions, …) completes choices for nested command|occurrence=1
  - mocha:v1|namespace=yargs@4153e0f097aeaf43a71a2530db6dda51dff2c544:main|file=test/completion.mjs|title=Completion default completion behavior calling yargs(./completion, --get-yargs-completions, …) works if positional has no choices|occurrence=1 Introduced here