unexpectd indent

[peachest]

test.mustache:

env: {
    {{#env}}{{#es6}}es6: true,
    {{/es6}}{{#jasmine}}jasmine: true,
    {{/jasmine}}{{/env}}
}

I store this file locally and use const template = fs.readFileSync().toString() to get the template text.

view:

const view = {
    env: {
        es6: true,
    }
}
// or
const view = {
    env: {
        es6: true,
        jasmine: true,
    }
}

When I execute mustache.render(template, view), I got the following output:

env: {
    es6: true,
    }

The indent of the end bracket is unexpectd.

expect:

env: {
    es6: true,    
}
// or
env: {
    es6: true,
    jasmine: true,
}

However, if I insert a linebreak after the tag in test.mustache, just like the following:

env: {
    {{#env}}{{#es6}}es6: true,
    {{/es6}}{{#jasmine}}jasmine: true,
    {{/jasmine}}{{/env}}
    
}

then I got:

env: {
    es6: true,
    
}

Now the indent of the bracket is right, but I got an extra empty line which is also unexpected.

I wonder why I got these result ? Is the way I read the .mustaache file wrong ?

Also may anybody provide a beautiful solution for this problem.