This is fixed in 2.3.0 api patch 98: https://bugs.internet2.edu/jira/browse/GRP-1725
The maintenance daemon will automatically fix registry corruption. This runs by default nightly. It is automatic since this is a race condition and the new value should overwrite the current value. So the previous value should be removed. Note this currently defaults to readonly until we get more experience with it, then we will default to on.
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