after a failed live storage migration (cause unknown) we have a
snapshot which is undeletable due to its status 'illegal' (as seen
in storage/snapshot tab). I have already found some bugs ,,
regarding this issue, but no way how to solve the issue within oVirt
I have attached the relevant engine.log snippet. Is there any way to
do a live merge (and therefore delete the snapshot)?
 https://bugzilla.redhat.com/show_bug.cgi?id=1247377 links to 
 https://bugzilla.redhat.com/show_bug.cgi?id=1247379 (no access)
some additional informations. I have checked the images on both storages
and verified the disk paths with virsh's dumpxml.
a) The images and snapshots are on both storages.
b) The images on source storage aren't used. (modification time)
c) The images on target storage are used. (modification time)
d) virsh -r dumpxml tells me disk images are located on _target_ storage.
e) Admin interface tells me, that images and snapshot are located on
_source_ storage, which isn't true, see b), c) and d).
What can we do, to solve this issue? Is this to be corrected in database
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