Vanity of vanities; all is vanity

A victim of my never ending tinkering, I noted that of the two blogs using my custom domain, the naked domain was being redirected to the ‘blog’ rather than the ‘www’ sub-domain. On the face of it this is easy enough to fix in Blogger settings, yet when I changed the setting on one blog this was reflected on the other; either both were set to redirect or neither were. Whatever order I unset and then set I seemingly couldn’t change the destination of my naked domain. Until I remembered to clear the cache; fool me once, Blogger, shame on you, fool me twice ... actually, I think this is the second time.