Endermen become hostile toward a player when looked at during the day

The bug

Endermen will be provoked by a player that looks at them, even during the day.

What I expected to happen was:

The enderman would remain neutral as it did in previous versions.

What actually happened was:

The enderman became aggressive.

How to reproduce

1. Find an enderman (either through natural spawn or /summon enderman)
2. Wait for it to become daytime (or use /time set noon)
3. Look at it (make sure you are in either survival or adventure mode and at most 64 blocks away)

→  The enderman becomes aggressive