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Having selected an effective staging graph to apply the model update to, MMS5 then executes a SPARQL update against the triplestore that performs several operations at a single atomic unit. They are summarized as:
acquire an exclusive write lock to the effective staging graph
detach the effective staging graph from its current owner
create a new ephemeral commit object in the project’s metadata graph
apply the model update to the effective staging graph
attach the effective staging graph to the new ephemeral commitrelease the write lock
1.4. Commit stabilization
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