That is a very good question, I’m afraid I don’t know the answer and I didn’t think of that.
I’m not sure when the writing process is complete 
After writing block 0
or after writing the full dump
If I had a FUID to test it on for you, I would.
Possibly
You could Write all the blocks EXCEPT block 0
Just untick 0
Then repeat, but tick 0
Maybe you need to buy another FUID to test on before commiting to the write
Sorry I can’t be of more help, nor more certain of my answers