the order in swap

[https://github.com/raydium-io/raydium-clmm/blob/master/programs/amm/src/instructions/swap.rs#L653](url)

original order:
1) transfer token from user to pool
2) check vault amount, freeze pool
3) transfer token from pool to user

I think the correct order:
1) check vault amount, freeze pool
2) transfer token from user to pool
3) transfer token from pool to user