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In a few places (e.g. device attach/detach/update) we are given a device XML, parse it but then need a copy of parsed data so that the original can be passed to function handling the request over inactive XML and the copy is then passed to function handling the operation over live XML. Note, both functions consume passed device on success, hence the need for copy. The problem is in combination of how the copy is obtained and where is passed. The copy is done by calling virDomainDeviceDefCopy() which does only inactive copy, i.e. no live information is copied over (e.g. no aliases). Then, this copy (inactive XML effectively) is passed to function handling live part of the operation (e.g. qemuDomainUpdateDeviceLive()) and the definition containing all the juicy, live bits is passed to function handling inactive part of the operation (e.g. qemuDomainUpdateDeviceConfig()). This is rather incorrect, and XML copies should be passed to their respective functions. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2036895 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Laine Stump <laine@redhat.com>