pack: cast the number of objects to size_t #6584
Merged
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Similar to a previous change where we had to change the casting when loading the index file, we also need to make sure we don't restrict the numbers to 32-bit when looking up objects in packfiles.
This was done about three years ago in git itself, but we never got he update in this library.
This is the potential bug I mention in #6583 where failing to parse the multi-pack index we then failed to parse the regular index as well. This is what git did in git/git@f86f769