Problems with Google's Wildcard Word in a Phrase Operator

There are problems reported with Google's Wildcard Word in a Phrase. The problem is that the asterisk seems to represent either zero or one word. It used to represent exactly one word. For example, "a little * * * mischief" used to find only "a little neglect may breed mischief" or a similar phrase of six words. Now it also finds pages with just "a little mischief." The cache copy on those pages says that the search terms only appear in pages pointing to the resulting page, but that does not seem accurate. I think that what now happens is that in addition to the way it used to work, Google now also ORs the results of the same search as if the asterisks were not in the query.