is done. Returns a Perl value which may be used instead of the
corresponding C</STRING/msixpodual> expression. The returned value is a
normalized version of the original pattern. It magically differs from
-a string containing the same characters: C<ref(qr/x/)> returns "Regexp",
-even though dereferencing the result returns undef.
+a string containing the same characters: C<ref(qr/x/)> returns "Regexp";
+however, dereferencing it is not well defined (you currently get the
+normalized version of the original pattern, but this may change).
+
For example,