#### Bug, feature request, or proposal: Bug #### What is the expected behavior? Selected value should change according to md-option values. Whether md-option is updated selected value should change #### What is the current behavior? Selected value doesn't change the value after fxHide is called and md-option values are changed #### What are the steps to reproduce? 1. Open a browser 2. Change the size of the browser to (lt-md) 3. md-option should hide some information in responsive (lt-md) https://plnkr.co/edit/L5XWZW7ew4gym47nPHaZ?p=preview #### What is the use-case or motivation for changing an existing behavior? For responsive design, I need to hide some elements in mdoptions. #### Which versions of Angular, Material, OS, TypeScript, browsers are affected? "@angular": "^4.3.3", "@angular/flex-layout": "2.0.0-beta.8", "@angular/material": "^2.0.0-beta.8", #### Is there anything else we should know? For responsive design I hide an element (food.value) in md-option, however the selected value doesn't refresh the change in md-option