Hi. I think this duplicate name issue still exists in the current 08-08-21 release:
<game name="Jurassic Park (1993)(Ocean)(US)[u2]">
<description>Jurassic Park (1993)(Ocean)(US)[u2]</description>
<rom name="Jurassic Park (1993)(Ocean)(US)[u].gb" .../>
<game name="Jurassic Park (1993)(Ocean)(US)[u2]">
<description>Jurassic Park (1993)(Ocean)(US)[u]</description>
<rom name="Jurassic Park (1993)(Ocean)(US)[u].gb" .../>
</game>