livecheck.regex problems due to r26041?

[Ryan Schmidt]

Could our recent livecheck regex issues (where regexes that we  
thought worked before suddenly are requiring additional escaping) be  
due to r26041?

http://trac.macosforge.org/projects/macports/changeset/26041

The log message reads "Fix livecheck to properly de-escape  
livecheck.url" and the revision does indeed do that. But it also  
changes the processing of livecheck.regex without explaining why.