Note that you can patch up the GIT history to link these three archives into one coherent whole.
$ cat .git/info/grafts
Incidentally, the first history doesn't contain the rest of the v2.4 data (the part that came after the v2.5 branchpoint).
Anyway, does anybody remember what happened to the history of 2.4.25? Pre-patch 1 thru 3 are missing from kernel.org.