Time of day overflow after calling '/time day'

[Woazboat]

Calling "/time day" somehow caused the time of day to overflow. The sun/moon was wildly spinning around and further calls to "/time day" increased the animation speed.
Was fixed through a server restart and is non-reproducible.

Cuberite server and core plugin from commit 3c272b55ea1239238ad9726bba9f7dc8b130e545

https://imgur.com/lkNfl1d

[madmaxoft]

I suspect this could be the result of a race condition related to the time animations. Two players asking for different times almost-simultaneously would probably cause problems.

[bearbin]

Fixed by #229