This assert was added to try and catch instances where we fail to map
the local address to the localProfile sentinel because the local address
hasn't been loaded by tsAccountManager.
We don't care about the reverse direction. There are instances at
startup where the we are fetching the localProfile using the known
sentinel before the local address has been loaded. In these instances,
we don't care that the local address hasn't been loaded since the
mapping has already been performed.
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