ROM Clones not Displayed in the Game Selection Screen

[spowell-kcc]

If you add multiple ROMs for the same game only one ROM (what appears to be the parent) shows on the game selection screen. So, for instance, multiple versions of PacMan don't show up, only a single version does, and in PacMac's case, it's Puckman, so you can't even play the Midway version of the game.