iOS: locking to landscape-(primary|secondary) inconsistent with screen.orientation.type

For me, using cordova-plugin-screen-orientation@2.0.1, screen.orientation.lock('landscape') works to lock the device into landscape mode. However, a new issue appears if I try to lock to "landscape-primary" or "landscape-secondary."

Desired functionality:

1. iOS device is initially locked in "portrait-primary" mode
2. User is required to turn device to landscape mode, so screen.orientation.lock('landscape'); is called
3. App should stick with orientation it went to, so if user turns phone upside down, it doesn't flip orientation

To achieve this:
Using the Hello Cordova app, I do the following to index.js

    // Add this to the receivedEvent() method
        console.log('Received Event: ' + id);
        window.addEventListener('orientationchange',app.orientationChanged);

    // Then add this to index.js after receivedEvent() method
    orientationChanged: function() {
        console.log("Orientation changed to " + screen.orientation.type);
        console.log("Locking orientation to " + screen.orientation.type);
        screen.orientation.lock(screen.orientation.type);
    }

Actual functionality:
When the app is run, instead of locking to a landscape mode and staying in place, it locks into landscape mode and then spins like it's party time!