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If something goes wrong while a potentially breaking change is being pushed through the metadata pipeline, a production SAML deployment can temporarily point its metadata refresh process at the fallback aggregate and thereby gain some time while the issue is being addressed. To determine if a metadata migration is in progress, consult the online diff between the fallback aggregate and the main production aggregate. Of course if the two are the same, pointing away from one toward the other will have no effect.
To leverage the legacy fallback aggregate, change your metadata config from this:
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