Previous experimental features, when graduating out of experimental gameplay, would have a data fixer added to move the feature flag from enabled_features to removed_features in level.dat. This same treatment does not apply to the minecraft:winter_drop feature flag; instead, the flag is simply forgotten when loaded in a version with the flag removed. This seems to be an unintentional inconsistency as this feature flag doesn't seem to have any special characteristics compared to other feature flags.
Steps to reproduce:
Create a world in Minecraft 1.21.3 with the winter drop experiment enabled
Upgrade the world to Minecraft snapshot 24w46a
Crash the game manually
Observe the list of removed features does not mention
minecraft:winter_drop
The impact this issue has on gameplay is that worlds that had the minecraft::winter_drop feature flag removed will not show that fact in the Removed feature flags entry of crash reports. Again, this is inconsistent with the previous removed feature flags (minecraft:update_1_20, minecraft:update_1_21, and minecraft:bundle).
Comments 4
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Could you please attach an example crash report showing removed features, and explain how you acquired that crash report?
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Is that the only impact? If it is, I'm surprised that data is normally moved to begin with,as that just wastes a bit of memory then.