»Creeper Egg Door Glitch

Ok so how this works is you open or door in someones claim its only openned for a sec so you place the creeper egg on the other side of the door then it closes and you do it again but you use a flint and steel to light it then you're in so it really isnt possible to have a safe pvp base unless you have no doors and no trap doors this can be fixed if you make it so instead of the door openning for a second then closing it just doesnt open and says you cant open it because its in the other person claim.