Description of problem:

I got into a state where I couldn't delete a domain I'd created using vmm; I managed to delete it in the end using virsh undefine.   I didn't get any error dialog but I spotted the following in the log

[Tue, 29 Apr 2014 21:40:46 virt-manager 19468] DEBUG (create:177) Closing new vm wizard
[Tue, 29 Apr 2014 21:40:46 virt-manager 19468] DEBUG (storagebrowse:86) Closing storage browser
[Tue, 29 Apr 2014 21:40:48 virt-manager 19468] DEBUG (delete:71) Showing delete wizard
[Tue, 29 Apr 2014 21:40:48 virt-manager 19468] DEBUG (cli:182) Uncaught exception:
Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/engine.py", line 1154, in _do_delete_domain
    self.delete_dialog.show(vm, src.topwin)
  File "/usr/share/virt-manager/virtManager/delete.py", line 75, in show
    self.reset_state()
  File "/usr/share/virt-manager/virtManager/delete.py", line 108, in reset_state
    self.vm, self.conn)
  File "/usr/share/virt-manager/virtManager/delete.py", line 260, in populate_storage_list
    vol = conn.get_vol_by_path(path)
  File "/usr/share/virt-manager/virtManager/connection.py", line 757, in get_vol_by_path
    if vol.get_target_path() == path:
  File "/usr/share/virt-manager/virtManager/storagepool.py", line 68, in get_target_path
    return self.get_xmlobj().target_path or ""
  File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 141, in get_xmlobj
    xml = self._get_raw_xml(inactive, refresh_if_nec)
  File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 197, in _get_raw_xml
    self.refresh_xml()
  File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 160, in refresh_xml
    self._xml = self._XMLDesc(self._active_xml_flags)
  File "/usr/share/virt-manager/virtManager/storagepool.py", line 44, in _XMLDesc
    return self._backend.XMLDesc(flags)
  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 2697, in XMLDesc
    if ret is None: raise libvirtError ('virStorageVolGetXMLDesc() failed', vol=self)
libvirtError: cannot stat file '/home/dg/trusty-server-cloudimg-amd64-disk1.img': No such file or directory

Version-Release number of selected component (if applicable):
virt-manager-1.0.1-2.fc20.noarch
libvirt-client-1.1.3.4-4.fc20.x86_64

How reproducible:
Not sure, I'm not 100% sure how I got to this point...

Steps to Reproduce:
(not 100% sure about the start of this...)
1. I created a domain from an existing .img file that was in my home directory, it warned that it might not have perms on the file, but I told it to continue anyway.
2. That failed, so I mv'd the .img file into my normal image directory
3. Then I managed to boot that VM ok
4. Then I aborted creating the domain again (I was trying to import and ovf but decided I wasn't sure how)
....
5. and then I tried to delete the VM that had been created by right click to get the menu on the domain and hitting delete (it was off anyway)

Actual results:
No apparent action at all, VM was still there in the list, no error dialog - see backtrace above.

Expected results:
The VM gets deleted.

Additional info:

Note the path shown in the backtrace is the original path I had.