Reported by Thomas Keller, Mar 3, 2007

(This entry was imported from the savannah tracker, original 
location: https://savannah.nongnu.org/bugs/index.php?19188)

If one calls any workspace-related command (e.g. mtn status) with 
mtn-0.32 in a 0.33 workspace which has more than one parent, 
monotone fails with an invariant error

I(rev.edges.size() == 1)

in work.cc, line 96, method get_work_rev() (in 0.32)

Now, since 0.32 is no longer fixable, but should already contain 
workspace version checking code, I guess this kind of bug is 
probably still be present in maybe another way in the current head?

Is ensured for version 0.x, that a workspace format change in 0.x+1 
will error out in 0.x properly with "workspace too new, upgrade 
your mtn install", to a certan degree, of course? (Not assuming 
that the actual workspace version checking code will change.)

monotone version:
-----------------
mtn-0.32, mtn-0.33