If LazyState cannot parse the attributes of its row as JSON, it prints
a message to the logger. Unfortunately, it passes `self` as a format
argument to that message, which causes its `__repr__` method to be
called, which then tries to retrieve `self.attributes` in order to
display them. This leads to an infinite recursion and a crash of the
entire core.
To fix, send the database row to be printed in the log message, rather
than the LazyState object that wraps around it.
c4f9489d61