mame2003_plus and fbalpha2012 do not support network play.

First and foremost consider this:

• Only RetroArch bugs should be filed here. Not core bugs or game bugs
• This is not a forum or a help section, this is strictly developer oriented

Description

[Description of the bug]
Please, due to core_info_current_supports_netplay function, core mame2003_plus and fbalpha2012 lost network game support, so we can no longer play network hack roms like street fighter 2 mix and Street Fighter Alpha 3 mix.

Expected behavior

[What you expected to happen]
To be able to play the cores mame2003_plus and fbalpha2012 online.

Actual behavior

[What is actually happening]
Cres that worked perfectly on the network game, such as mame2003_plus and fbalpha2012, work again on the network.

Version/Commit

You can find this information under Information/System Information

if (!core_info_current_supports_netplay() ||
serialization_quirks & (RETRO_SERIALIZATION_QUIRK_INCOMPLETE |
RETRO_SERIALIZATION_QUIRK_SINGLE_SESSION))
{
RARCH_ERR("[Netplay] %s\n", msg_hash_to_str(MSG_NETPLAY_UNSUPPORTED));
runloop_msg_queue_push(
msg_hash_to_str(MSG_NETPLAY_UNSUPPORTED), 0, 180, false, NULL,
MESSAGE_QUEUE_ICON_DEFAULT, MESSAGE_QUEUE_CATEGORY_INFO);
goto failure;
}

• RetroArch: [version/commit] master

Environment information

• OS: [The operating system you're running]
• Compiler: [In case you are running local builds]
  linux and windowns

Start at core_info_current_supports_netplay and trace how the serialization-quirk check rejects mame2003_plus and fbalpha2012. Reproduce the failure with the named cores and network hack ROMs on Linux or Windows; done means both cores can enter network play without the unsupported message.