strictOptions with 'strip-aliased' doesn't work with a capitalize option

[fcastilloec]

As reported in yargs/yargs#1701, using yargs@next with the new strictOptions is not working correctly when using a capitalize alias and setting parserConfiguration({ 'strip-aliased': true }). Here's some working code to reproduce the bug:

yargs(['foo', '-a'])
  .parserConfiguration({ 'strip-aliased': true })
  .strictOptions()
  .option('and', { alias: 'A' })
  .parse();

If you set 'strip-aliased': false then it fails as it should.

[bcoe]

@fcastilloec Just following up on this issue, with the latest version of yargs are you able to stop using your workaround, now that I've addressed this bug you shared.