Open aryoadhi opened 1 year ago
I don't get it. Why would you clear set ID but not beatmap ID.
The only assumption I can think is the mapper directly edits the offline/unuploaded copy of the beatmap, without making their own difficulty copy (i.e simply editing difficulty name). As you can see from the .osu file I obtained before the GD is uploaded (in .txt file), the BeatmapID is already set to existing beatmap, however the BeatmapSetID is -1, which means it's the game automatically updating BeatmapID, but not BeatmapSetID because the update requires user interaction.
This was completely done without any manual/deliberate intervention. Abyssmare_-_I_AM_THE_BEST_Ryu_Sei_Insane_IS_THE_HARBY.txt
set id can't be null if beatmap id is populated. it's both or none.
For some reason, BSS doesn't honor maps with complete
BeatmapID
andBeatmapSetID
when uploading maps to osu!. This causes unintended behavior as happened to this map: https://osu.ppy.sh/beatmapsets/1998595/discussion/4154388/general#/3748411Here's how to replicate it:
.osu
file to the pending/WIP beatmap setBeatmapID
value of that new beatmap to be the same as existing mapsBeatmapSetID
to either0
or-1
The result of this bug causes the discussions happened to existing map to be transferred to another difficulty, which is unwanted and may causes issues on long run if that difficulty has many mods.
While this issue requires deliberation to replicate it, this may occur due to how osu! automatically retreives
BeatmapID
if the map is somehow uploaded by the mapper, and the guest previously owned the unuploaded copy and then creating new diff based on that map. In short, the guest may not know that their local copy already automatically modified by client so they can update the map to reflect the latest version.I suggest to have osu! automatically check sanity of the map, which prioritizes complete metadata first, followed with
BeatmapID
andBeatmapSetID
, and then anything else.