Ive been using this exploit/bug in gw a long time. When u are in a gvg match and for example the enemy base gate is going to close in front of u, just click behind the gate and ur character runs trough the closed gate
Sometimes this is very useful if u dont have a thief, or u just come a little too late to the gate. Hope it wont be fixed soon.
EDIT: Getting in to closed gates saves time (1-2min is really much) in gvg, if ur guild thief is dead or far away and ur team must get into enemy base. One guy can run trough the door and open the gate for others. But still u must be close enough to the gate and the timing has to be ok, difficult to explane
Just give it a try if u ever play gvg 