merge degrades to pull in an empty branch from bzr 0.10 on

[Robert Collins]

In bzr 0.10 we are changing the tree model to not record 'None' as a
last revision if there are pending merges - instead the left most merge
will become the last revision. This means that
'bzr init'
'bzr merge'

will behave the same as
'bzr init'
'bzr pull'

The long term fix is probably to have new trees have an explicit first
parent of 'empty:', but that its ok to do that later.

 affects /products/bzr

--
GPG key available at: <http://www.robertcollins.net/keys.txt>.

[John A Meinel (jameinel)]

It doesn't seem strictly necessary to support 'bzr init; bzr merge'. But if we decide it is an important use case, we can re-prioritize this bug.