Multiplayer Water Glitch

Put the summary of the bug you're having here

What I expected to happen was...
The water was expected to not flash when I looked at it through a nether portal.

What actually happened was...:
The water was a different color when i looked through one portal block., but it looked diffferent through a diferent portal block

Steps to Reproduce:
1. Be on Multiplayer
2.Build a nether portal.
3.Put water behind the portal so it is visible from the other side of the portal.
4.Look at the water from the other side of the portal.
2. ...
3. ...