Stale server-cache (duping)

There used to be a very convoluted duplication glitch that went as follows: 

 Join server A with account 1 and account 2 

 Load the plot of account 1 and unload (this is to put the savedata into server cache) 

 Join server B with account 1 and account 3 

 Load the plot of account 1 and account 3 and move the items from account 1 to account 3 

 unload the plot of account 1 

 Join server A with account 1 

 Load the plot of account 1 and move the items to account 2 (it loads savedata from server cache) 

 After this you should have the items on both account 2 and account 3