Description of problem:
Right now the cleanup command cemoves the uuid, that leaves the prefix in an unstable status, as lago still thinks it's a prefix (the .lago file exists) but it's unable to find the uuid.
So the optimal solution would be to remove the .lago file. That also allows to relate any leftover libvint entities with the demised prefix by the uuid (lago appends the first chars of the uuid hash to all the entities created by that prefix)


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