browser.updateCapabilities does not merge configs, it overrides the previous one

[swrdfish]

If some one calls browser.updateCapabilities multiple times, then nested objects get overridden instead of getting merged.

// assume desiredCapabilities = {}
browser.updateCapability ({
    browser: 'firefox',
    'bstack:options': {
        platformName: 'windows'
    }
});

// desiredCapabilities = {
//     browser: 'firefox',
//     'bstack:options': {
//         platformName: 'windows'
//     }
// }

browser.updateCapability ({
    'bstack:options': {
        seleniumVersion:  '3.5.2'
    }
});

// desiredCapabilities = {
//     browser: 'firefox',
//     'bstack:options': {
//         seleniumVersion:  "3.5.2"
//     }
// }

Expected output:

// desiredCapabilities = {
//     browser: 'firefox',
//     'bstack:options': {
//         platformName: 'windows'
//         seleniumVersion:  "3.5.2"
//     }
// }

[vinodreddy-bs]

I found the issue. Will be sending a PR soon. Please assign on my name