UI bug: minor (Dead bases notification doesn't clear)

UI bug: Minor

If you look at the screenshot below, on the left you will read NJ Fort Enyo is “stop enemy invasion at Fort Enyo”

If you look to the center-right, Fort Enyo is destroyed. The message never cleared on the info screen to the left. I tried to right-click and left-click to clear the message but the messages seem to only clear if you can save the base. I would recommend a right or left click to clear messages.