Dear Maintainer,

i have annoying bug/glitch on slick-greeter. everytime i log in to my system, i need to press enter twice after typing my password/username because
there is a double textbox appeared in login UI. this bug did not present on Linux Mint (uses slick-greeter too)

	* what did i do?
		- just login to my computer as usual
	* what was the outcome?
		- double textbox appears then i must press enter twice. sometimes i had to type twice
	* expected outcome?
		- single textbox appeared.