This looks fine to me, similar to work in #655 but much more explicit for zero/empty case.

@ChihChengLiang can you take a look as well?

@b-tarczynski it would be good to have test case for this as well, likely can be added in https://github.com/thehubbleproject/hubble-contracts/blob/master/test/slow/rollup.create2Transfer.test.ts

This looks fine to me, similar to work in #655 but much more explicit for zero/empty case.

@ChihChengLiang can you take a look as well?

@b-tarczynski it would be good to have test case for this as well, likely can be added in https://github.com/thehubbleproject/hubble-contracts/blob/master/test/slow/rollup.create2Transfer.test.ts

I added test for these changes as you suggested

Docker CI failure can be ignored, unrelated to this work.