Negatable options do not negate explicit values

[burnnat]

When using negatable options, I would expect --flag=true to be equivalent to --flag and --no-flag=true to be equivalent to --no-flag. However, it seems when an explicit value is provided for the option, negation is not taken into account.

I tested with the following code:

@Command(name = "test")
public class TestNegation implements Callable<Integer> {

    @Option(names = {"--flag"}, negatable = true)
    private boolean flag;

    public static void main(String[] args) {
        System.exit(new CommandLine(new TestNegation()).execute(args));
    }

    @Override
    public Integer call() throws Exception {
        System.out.printf("Value: " + flag);
        return 0;
    }
}

And observed these results:

--flag          // Value: true
--no-flag       // Value: false
--flag=true     // Value: true
--no-flag=true  // Value: true (!)
--flag=false    // Value: false
--no-flag=false // Value: false (!)

Is this a bug? If not, some clarification in the documentation on negatable options might be good.

[remkop]

That does look like a bug, thank you for raising this!
I will take a look when I get a chance.

[remkop]

This is now fixed in the main branch and will be included in the next release.
Thank you again for raising this!