Created attachment 639422 [details]
logs

Description of problem:

I took a snapshot of a vm with one disk and than added a second disk. 
preview -> commit will remove the disk from the UI, disk still exists in db and vdsm. 

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

si24

How reproducible:

100%

Steps to Reproduce:
1. create a vm with 1 disk and take a snapshot
2. add a second disk
3. preview -> disk disappears from UI view -> commit 
  
Actual results:

disk still exists in db and vdsm but not in UI. 

Expected results:

1. in the past the behaviour was not to remove any disks created after the snapshot was taken. 
2. even if we changed behaviour we still need to remove the disk in vdsm and db. 

Additional info: logs + lvs before and after the commit

this is the disk that disappeared from view: 

4d34ec65-76f1-434e-a2d2-64cb56d2419c

after creating the disk first: 

diff after create snapshot and 2ed disk: 

[root@gold-vdsd ~]# diff /tmp/lvs.txt /tmp/lvs2.txt 
19a20
>   0cb34221-9c55-4beb-b99d-358bf0efe956 af5bb9ad-ebe7-4ade-8d0d-a6882d11af44 -wi-----   1.00g                                           
21a23
>   4d34ec65-76f1-434e-a2d2-64cb56d2419c af5bb9ad-ebe7-4ade-8d0d-a6882d11af44 -wi-----   1.00g                                           
23a26
>   7c5812b8-b434-43da-b7b9-6615a08431ba af5bb9ad-ebe7-4ade-8d0d-a6882d11af44 -wi-----   1.00g  

diff after commit: 


[root@gold-vdsd ~]# diff /tmp/lvs.txt /tmp/lvs_commit.txt
21a22,23
>   44dfdacc-f87c-4a2d-b184-3cf0d846107a af5bb9ad-ebe7-4ade-8d0d-a6882d11af44 -wi-----   1.00g                                           
>   4d34ec65-76f1-434e-a2d2-64cb56d2419c af5bb9ad-ebe7-4ade-8d0d-a6882d11af44 -wi-----   1.00g                                           
23a26
>   7c5812b8-b434-43da-b7b9-6615a08431ba af5bb9ad-ebe7-4ade-8d0d-a6882d11af44 -wi-----   1.00g                   


this is the disk in db after the commit: 

 4d34ec65-76f1-434e-a2d2-64cb56d2419c | 2012-11-06 17:48:30+02 |  1073741824 | 00000000-0000-0000-0000-000000000000 | 00000000-0000-0000-0000-000000000000 |           1 | 2012-11-06 17:48:30+02     | 40b8bba6-0a0c-4e13-a93c-cf4b594c00c4
 |           1 |             5 | 4e136e88-882a-4d5b-90e6-2a12bcf49323 | 2012-11-06 17:48:27.753052+02 | 2012-11-06 17:48:31.148047+02 | 00000000-0000-0000-0000-000000000000 | t