bzr shell autocomplete doesn't support spaces in filenames

Using bzrtools (Unbuntu karmic 64, package bzrtools 2.0.1-1 )

When in the bzr shell, if a file or folder has a space in it's name, auto complete gives an unusable completion.

Example :
The current folder contains a folder called "My Branch"

In bzr shell, typing the following line ([tab] means hitting tab...)
        qlog My[tab]

will expand to
        qlog My Branch

and this will pass two folders to qlog... "My" and "Branch" instead of "My Branch"

The correct expansion would have been either
       qlog My\ Branch
or
       qlog "My Branch"