The difference between the serialized versions before and after appears to be an upgrade of the meta-file format:
before: 00000000 56 43 4c 4d 54 46 01 00 31 00 00 00 01 00 00 00 |VCLMTF..1.......| 00000010 01 00 1b 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000020 01 00 00 00 01 00 00 00 01 00 00 00 01 00 00 00 |................| 00000030 00 5f 47 00 00 b3 33 00 00 ad 04 00 00 84 00 01 |._G...3.........| after: 00000000 56 43 4c 4d 54 46 02 00 32 00 00 00 01 00 00 00 |VCLMTF..2.......| 00000010 01 00 1b 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000020 01 00 00 00 01 00 00 00 01 00 00 00 01 00 00 00 |................| 00000030 00 5f 47 00 00 b3 33 00 00 ad 04 00 00 01 84 00 |._G...3.........|
I assume we upgrade it on the auto-save. The files are rather different after the first four lines; diff -u shows little similarity after then.
The difference between the serialized versions before and after appears to be an upgrade of the meta-file format:
before:
00000000 56 43 4c 4d 54 46 01 00 31 00 00 00 01 00 00 00 |VCLMTF..1.......|
00000010 01 00 1b 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000020 01 00 00 00 01 00 00 00 01 00 00 00 01 00 00 00 |................|
00000030 00 5f 47 00 00 b3 33 00 00 ad 04 00 00 84 00 01 |._G...3.........|
after:
00000000 56 43 4c 4d 54 46 02 00 32 00 00 00 01 00 00 00 |VCLMTF..2.......|
00000010 01 00 1b 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000020 01 00 00 00 01 00 00 00 01 00 00 00 01 00 00 00 |................|
00000030 00 5f 47 00 00 b3 33 00 00 ad 04 00 00 01 84 00 |._G...3.........|
I assume we upgrade it on the auto-save. The files are rather different after the first four lines; diff -u shows little similarity after then.