Series scripts execution breaks, when using underscored command names

[SleepWalker]

• nps version: 5.8.1
• node version: 8.0.0
• npm version: 5.6.0

Scripts file (or at least the relevant bits):

    foo: {
      bar: 'nps foo._bar foo._baz',
      // bar: 'nps foo._baz foo._bar foo._baz foo._bar',
      _bar: {
        script: 'echo "bar"',
        hiddenFromHelp: true,
      },
      _baz: {
        script: 'echo "baz"',
        hiddenFromHelp: true,
      },
    },

The command executed:

nps foo.bar

The output:

$ nps foo.bar

nps is executing `foo.bar` : echo "bar"
bar

Expected output:

$ nps foo.bar

nps is executing `foo.bar` : nps foo._baz foo._bar
nps is executing `foo._baz` : echo "baz"
baz
nps is executing `foo._bar` : echo "bar"
bar

Problem description:

If you run commands in series and one of the commands has the same name as a parent, but with underscore (at the beginning or at the end or both. no matter), it will execute only that command ignoring all other scripts in the series.

Suggested solution:

Looks like there are no special syntax around underscores, so I can assume, that this was due to case conversion during command parsing. I haven't looked at the source code, to provide an actual solution. But I can prepare a fix if this issue will be considered a bug.

[kentcdodds]

Weird. Seems like a bug. Feel free to dig deeper and make a pull request if you find what's going on. Thanks!