If you try to fish a minecart with a fishing rod the minecart will break. Sometimes the cart will drop, other times it won't.
Environment
Microsoft Windows 8 Pro 64-bit, Java SE7 U51.
Linked issues
is duplicated by 7
MC-10820
Using a fishing rod on a TNT minecart deletes the minecart
Resolved
MC-36622
Casting rod while in a boat in creative removes the boat
Resolved
MC-8237
You can't catch minecart using fishing rod
Resolved
MC-29912
Fishing rod on boat
Resolved
MC-42407
When I cast my fishing rod on a boat, it went crazy!
Resolved
2 more links
Confirmed. For further clarification: the cart is dropped as item when in creative. Works well in survival.