Reported by Ludovic Brenta, Mar 14, 2009

(This entry was imported from the savannah tracker, original 
location: https://savannah.nongnu.org/bugs/index.php?25859)

Consider the following revision graph:

 1
 |\
 2 3
 | |
 4 |
 | /
 5

Revision 1 contains file a.
Revision 2 removes a.
Revision 3 modifies a.
Revision 4 disapproves revision 2.
Revision 5 is the result of "mtn merge".

The problem is that if you look at "mtn log --last=1" you 
see:

|\    Revision: 21f26345547d7660939afe1741402e570a3d4280
| |   Ancestor: 3d64d042bf7c34efa00ab804ee45d3d87dd84feb
| |   Ancestor: 7bb800f87254e9dd214f9ea600475b86e186a1c7
| |   Author: Ludovic Brenta
| |   Date: 2009-03-14T13:44:07
| |   Branch: a
| |
| |   Deleted entries:
| |           a
| |   Added files:
| |           a
| |
| |   ChangeLog:
| |
| |   merge of '3d64d042bf7c34efa00ab804ee45d3d87dd84feb'
| |        and '7bb800f87254e9dd214f9ea600475b86e186a1c7'

and *the changes made in revision 3 are lost* (i.e. a has its 
contents from revision 1).

The log for revision 4 (the disapproval) gives us a clue:

o   -----------------------------------------------------------------
|   Revision: 7bb800f87254e9dd214f9ea600475b86e186a1c7
|   Ancestor: c0b5b67d99eba388550f3bbab47089a6fa7d301c
|   Author: Ludovic Brenta
|   Date: 2009-03-14T13:42:05
|   Branch: a
|
|   Added files:
|           a
|
|   ChangeLog:
|
|   disapproval of revision 
'c0b5b67d99eba388550f3bbab47089a6fa7d301c'

It says it "added" a, not that it "resurrected" 
it.

monotone version:
-----------------
monotone 0.40 (base revision: 
5ccc279f9dea0444b47f03dd5291ecc985fcb7f6)
Running on          : Linux 2.6.26-1-amd64 #1 SMP Mon Dec 15 
17:25:36 UTC 2008 x86_64
C++ compiler        : GNU C++ version 4.3.1
C++ standard library: GNU libstdc++ version 20080705
Boost version       : 1_34_1
Changes since base revision:
unknown