Disappearing Minecarts In Adventure Mode

When in Adventure Mode, if you attempt to pick up your minecart after you have journeyed on it it disappears! This bug has been going on for nearly a year, and you new version has not fixed it, so I joined the bug tracker team today. It is playing havoc with the adventure games I am building.

So to confirm, whether a minecart is resting on tracks or on the ground, when you hit it to pick it up it disappears.