Saposhiente
Comments
Retested in 14w07a; still occurs, but took more time to do so, about 1 hour (this may be just random)
@Fluffy89502 No; as the video and screenshots show, I have plenty of memory remaining (about 50% is allocated when I open the world, and it climbs to only 60% allocated.)
@Kumasasa I tested it individually, with no scoreboard, on 14w06b, and got the same behavior.
Why not both? You could keep the current behavior, but also add a new mode, perhaps call it Explore mode, where you can't modify the world in any way.
Confirmed in 14w21b
Tried with /gamerule logAdminCommands false and did not encounter the problem