[MC-67258] Serious Graphical Glitches in the snapshots

When trying to play the new snapshots on a higher chunk loading area, I experienced MAJOR graphical glitches.
https://www.youtube.com/watch?v=h0Rg0dZna2E (Single Player)
https://www.youtube.com/watch?v=3iUvGL3z_v8 (Multiplayer)

Related issues

migrated 2014-08-14T04:28:37Z

Can you define the glitches? This is MC-66970, or it's not. (I know, I'm not a mod.)

migrated 2014-08-14T04:29:45Z

Updated w/ video

migrated 2014-08-14T10:03:10Z

@SuburbSomeone (lastname) Nah, I think it's more this issue: MC-62958