something interesting wowmapper for 16357

[mengxp]

wowmapper is not updated for MoP
first i use stormlib instead libmpq

and then wowmapper can work for world.mpq

but if i load wow-update-base-16309.MPQ to patch world.mpq

wowmapper got a error chunk id mismatch:XXXX

i compared unpatched adt file and patched one

found interesting thing
...
00059598: 00 88
0005959C: 00 20
0005959D: 00 05
00059C88: 00 88
00059C8C: 00 20
00059C8D: 00 05
0005A378: 00 88
0005A37C: 00 20
0005A37D: 00 05
0005AA68: 00 88
0005AA6C: 00 20
0005AA6D: 00 05
0005B158: 00 88
0005B15C: 00 20
0005B15D: 00 05
0005B848: 00 88
0005B84C: 00 20
0005B84D: 00 05
...

it seems that 16309 patch all adt files
erased their MCVT and MCNR offsets

is that true?