06327: Many sets appear as unavailable, even though the ROM files are present

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
06327	Interface	Minor	Always	Jul 27, 2016, 15:52	Jul 28, 2016, 01:07

Tester	Zaghadka	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	No change required	OS	Windows 10 (64-bit)
Status [?]	Closed			Driver
Version	0.176	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	06327: Many sets appear as unavailable, even though the ROM files are present
Description	I have noticed a great number of sets appearing as unavailable, even though the ROM files are present in split volumes. Notably, Genesis (USA, NTSC) and Mega Drive (Japan, NTSC) show up in the "unavailable" tab, even though I can launch them from the "working" tab. They do not appear in the "available" tab because they are being tagged as unavailable. The sets I am using are "genesis.zip" and "megadrij.zip," so the sets are split and available. There are many other sets showing up as unavailable. I can take screen shots of all the sets if needed.
Steps To Reproduce	Launch the GUI and choose the "unavailable" tab. Genesis (USA, NTSC) shows up there, but not in "available" (amongst many others). Go to the "working" tab and pick the set, and it launches without problems. The rom set is present but showing up as unavailable.
Additional Information	I own a Genesis, so I'm focusing on what I have, and not sets that I don't own a PCB for. Something's happened to the GUI tabs.
Github Commit

Flags
Regression Version	0.176
Affected Sets / Systems

Attached Files

No.12985 Osso Moderator Jul 27, 2016, 16:42	This is new default behaviour. Go in "miscellaneous options" and disable "hide ROMless machines from the availables list". Also genesis and megadrive don't have a romset.
No.12986 Stiletto Developer Jul 27, 2016, 18:47	why is this the default now?
No.12987 Osso Moderator Jul 27, 2016, 19:03	Cause people were complaining that they found a lot of sets in the available folder that they didn't have any rom for. Here's the commit that changed it: http://git.redump.net/mame/commit/?id=440c90486af0ebedfdd931cd19db5dee87de4f04
No.12988 Zaghadka Tester Jul 27, 2016, 21:04	My mistake. I didn't check to see if the machines were ROM-less. Thanks for the info.
No.12990 Tafoid Administrator Jul 28, 2016, 01:07	This change is as intended and not a considered a bug. Closing