Problems with setting time

[madmaxoft]

Apparently, the animation of setting the time can produce jitter or wrong sun position.

Originally reported in cuberite/cuberite#4631:

Client version: 12.2.2
Server OS: Linux
Cuberite Commit id: 16b3de94c89edae2ba8ff7ad6baa6b322c4571af

Expected behavior

Setting the time sets the time with no problems whilst setting one number over and over would set the sun to always the same position.

Actual behavior

Seems pretty random...sometimes the sun starts jittering. Sometimes the same number causes different positions of the sun.
It just stops jittering if you provide the same number twice. But even then the position can vary.

Here are 2 examples of my brother and me discovering this:
https://medal.tv/clips/22030763/d1337onm8phI
https://medal.tv/clips/22030809/d1337dBBz6e0

Steps to reproduce the behavior

Set the time of the sun to 2 different positions quickly over and over again.

[mathiascode]

Do we need the animation? Seems like needless complexity for little gain.