Dispensers are firing more towards one side. (South facing dispensers fire items west, West firing North, North firing West, and East firing North)
What I expected to happen was...:
Items would be fired in a mostly straight but random-ish manner,
What actually happened was...:
Dispensed items were staying to one side
Steps to Reproduce:
1. Place a dispenser is any direction.
2. Put items in it and power it.
3. watch as items shoot towards one side and not the other.
Related issues
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Confirmed. It appears they only get north and west velocity when they come out of the dispenser.
Forgot to include in screenshots, but I was facing West.
Still in 1.4.4pre and very annoying. Please fix before releasing an official version.

Someone reported Nether Stars dispensing to the right on the wiki. After investigating on Minecraft 1.4.5, I discovered all items dispense toward "northeast," or the diagonal between f 1 and 2. This issue should be updated to include 1.4.5 as an affected version. It is unfortunate this has made it into another pre-release .