Please generally disable the swipe feature if another window is open or a tooltip is open (in the foreground).

if you want to mark a text out of the tooltips (like coordinates to auto copy them to the infopanel) in the galaxy or in another opened window then you dont want to go to another system, because the tooltip/window will disappear when you change the "page". the windows can come from the action icons (message, buddy, rocket, phalanx) or the top menu of OGame (notes, buddy, search, etc).
For now if you wish to copy something out there, then you are forced to press Ctrl+C when you are marking the text and afterwards to change the system althought you are not done with your actions in that system. The same will be on pages other than Galaxy (i assume that the swipe feature will come for other pages in the future) so this should be a general behaviour rule.

GreetingZ