Actually, as a quirk of the design, the final transaction MUST be a series of transactions which are 'conflict free'.
For instance, if the close gives Alice 10 lumens and Bob 10 lumens, these must be expressed as two transactions. Otherwise, if Bob deletes his account, this causes a conflict when the transaction is published (and the transaction will fail). If they are two separate transactions, there is no problem if Bob deletes his account.
For instance, if the close gives Alice 10 lumens and Bob 10 lumens, these must be expressed as two transactions. Otherwise, if Bob deletes his account, this causes a conflict when the transaction is published (and the transaction will fail). If they are two separate transactions, there is no problem if Bob deletes his account.