FF at the End of a Content Type ID Kills Update Propagation

I just spent a couple of hours tracking down an issue where our content type update code wasn’t working for some content types.  The problem ended up being that one content type in the hierarchy had a content type ID that ended with “FF” (such as “0x0100EBE43BB291D8438f94E2C48C129366FF”).  None of this type’s child content types were…

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