BitVector transfer() does not transfer ownership

[asfimport]

When buffers are transferred one vector to another, the ownership of the buffers needs to be transferred to the target vectors allocator. This is done in all of the other vectors, but BitVector, which is not generated using the freemarker templates, does not have this code implemented.

This causes memory accounting to be incorrect.

Reporter: Steven Phillips / @StevenMPhillips
Assignee: Steven Phillips / @StevenMPhillips

Related issues:

• Arrow 0.3 release (blocks)

_{Note: This issue was originally created as ARROW-888. Please see the migration documentation for further details.}

[asfimport]

Julien Le Dem / @julienledem:
Issue resolved by pull request 594
#594