Arrows lose their dataTag info once shot from a bow

When shooting an arrow that has been renamed in the anvil or by command block using /summon, the dataTag info associated with the arrow is lost.

Procedure to reproduce:

1-Rename arrows in an anvil ie:"MyArrow"
2-Shoot the arrow with a bow
3-Retrieve the arrow and it will have lost its name.

Also effects /testfor, /scoreboard, and /execute.

An aside:

{Possible uses: Ammo types, Team Ammo, Adventure map, mob enhancements....etc}