merge-recursive: Add comments about handling rename/add-source cases
merge-recursive: Add comments about handling rename/add-source cases

There are a couple of places where changes are needed to for situations
involving rename/add-source issues.  Add comments about the needed changes
(and existing bugs) until git has been enabled to detect such cases.

Signed-off-by: Elijah Newren <955405675e5ddb1a110d200661c528aa223ef60f@gmail.com>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git