Description of problem:

Evolution cannot create new folders in a MH Mail tree

Version-Release number of selected component (if applicable):

evolution-2.6.3-1.fc5.5

How reproducible:

My evolution environment has been with me for a while.  It began with an
import of an MH tree of legacy mail that I've had forever.  This tree is
configured as a secondary mail account which is not my default.  I like it's
structure, I've continued to use its folders through FC3 and FC4.  Since
installing FC5 I've been unable to add new subfolders.  For example I
have a top-level folder called 'ccb'.  Attempting to add a folder 'foo' below
'ccb' pops a dialog that says:

Store root /bcl/cbox/home/ccb/Mail/ is not an absolute path

The controlling terminal also reports:

DEBUG: ccb/foo (mh:///bcl/cbox/home/ccb/Mail#ccb/foo)

(evolution-2.6:5638): evolution-mail-WARNING **: Error occurred while existing
dialogue active:
Store root /bcl/cbox/home/ccb/Mail/ is not an absolute path


OK.  It's unpleasant.  

So I pop the Preferences, select Mail Accounts, select this particular account
and press Edit to bring up the Account Editor.  I hit the Receiving Email tab
and then Browse for a configuration path.  The file picker dialog does not allow
the selection of a directory.  I select my Mail directory and the only buttons
available are Cancel and Open.  I hit Open expecting that the selected directory
will be returned to the application is the  desired Configuration Path:.  Nope.
 The file picker dialog opens the Mail directory and shows me its contents.  The
file picker will not allow the selection of any directory at all...  If I select
a regular file only then does it report the file back to the Receiving Email
dialog.  This is of course wrong.

It appears from a quick look that this is not the only thing wrong with
Evolution.  Should it be deprecated?

Steps to Reproduce:
1. Described above
2.
3.
  
Actual results:
Described above.

Expected results:
I expect to be able to use existing MH folder trees with Evolution
I expect to be able to select directories with the Gnome file picker
 when the dialog that popped the file picker needs a directory.

Additional info: