on the new pattern too.
At the start of execution of a pattern, the RXf_TAINTED_SEEN flag on the
-regex is cleared; during execution, locale-variant ops such as ALNUML may
+regex is cleared; during execution, locale-variant ops such as POSIXL may
set RXf_TAINTED_SEEN.
RXf_TAINTED_SEEN is used post-execution by the get magic code