I'm using two keyboard layouts - English and Russian. Sometimes lock screen has Russian layout as active, so I change it to English (using hotkey alt+shift) and fastly typing my password. But every time I see that this password input element loses focus, so I have to click on it and type the password again. It is very annoying.

Reproducible: Always

Steps to Reproduce:
1. Make sure you have two keyboard layouts enabled
2. Go to the lock screen
3. Change your active keyboard layout using hotkey
Actual Results:  
Input element loses focus (is not active any more)

Expected Results:  
After I change the keyboard layout it should focus back to the password input element, or not to lose focus at all.