adding "Champions: Return to Arms" causes a crash

[valters-tomsons]

Crashlog: https://gist.github.com/FaithLV/a2a11080224f6effff45f37ad996307e

Issue is with characters in GameIndex.dbf

Serial = SLES-53039
Name = Champions - Return to Arms // aka "Champions of Norrath 2"
Region = PAL-M4
Compat = 4
// allows import of characters from first game
MemCardFilter = SLES-53039/SLES-52325

Serial = SLUS-20973
Name = Champions - Return to Arms // aka "Champions of Norrath 2"
Region = NTSC-U
Compat = 5
MemCardFilter = SLUS-20973/SLUS-20565

Serial = SLUS-29126
Name = Champions - Return to Arms [Demo] // aka "Champions of Norrath 2 [Demo]"
Region = NTSC-U
Compat = 4

[valters-tomsons]

Fixed as of: c783e4b