/sit doesn't appear to work

[Edward Hart-Davis]

It produces the ender eye or whatever that would usually be between the player's buttocks but the player is never really sitting, you can see the ender eye immediately disappear, for no further happenings to commence.

[Brendan Stafford]

This is actually CraftBook related. Related to a recent change in ClassicLoader. /Sit is fixed in the newer version :)

[Anna Bakker]

This was also resolved in canary/classicloader by reverting the previously mentioned change: https://bitbucket.org/minecraftonline/classicloader/commits/8a9d0e53dd8f440cfd9ebdecede739a5bcd62461

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