qemu: snapshot: Initialize data for inactive config of snapshot earlier
qemu: snapshot: Initialize data for inactive config of snapshot earlier

qemuDomainSnapshotDiskDataCollect copies the source of the disk from the
live config into the inactive config. Move this operation earlier so
that if we initialize it for use for the particular instance the
run-time-only data is not copied.

Signed-off-by: Peter Krempa <2cf5c04c61aa466e4a47bfedc747d17279c72ffc@redhat.com>
Reviewed-by: Ján Tomko <4cab11cfb98d3c937327354a78eb07dbb6ee2bc6@redhat.com>

jardasgit/libvirt,libvirt/libvirt,olafhering/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,crobinso/libvirt,andreabolognani/libvirt,nertpinx/libvirt,andreabolognani/libvirt,olafhering/libvirt,zippy2/libvirt,fabianfreyer/libvirt,crobinso/libvirt,fabianfreyer/libvirt,libvirt/libvirt,nertpinx/libvirt,jfehlig/libvirt,olafhering/libvirt,andreabolognani/libvirt,nertpinx/libvirt,zippy2/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,nertpinx/libvirt,zippy2/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,crobinso/libvirt,libvirt/libvirt,andreabolognani/libvirt,crobinso/libvirt,jardasgit/libvirt,jfehlig/libvirt,andreabolognani/libvirt,libvirt/libvirt,nertpinx/libvirt,olafhering/libvirt,jardasgit/libvirt,jardasgit/libvirt,zippy2/libvirt