silverstripe/sapphire — pull request #750 by hafriedlander (2012-08-29 02:32:28+00:00)
Title: FIX If ClassName read from DB doesnt exist, dont break

We know the subclass of a record by its ClassName value, but code changes
might have meant that class no longer exists. We used to just break,
but this patch overrides the apparent value of ClassName to be
one that exists in that situation