Yes, the idea is that when taking over another's analysis, you are supposed to work off what the previous holder already did, rather than starting completely anew. That way, it means that valuable work isn't lost and time isn't wasted.
EDIT: I saw that you edited your post. Do you still want the reservation or not?
Everything in the index should be up to date now.
Also, I would just like to extend hearty congratulations to Delta 2777 for having the first 'FINISHED' analysis for the fifth generation. Here's hoping there'll be plenty more in the coming days, as well.