id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc
679,"Error in Reg-Expression ""HTMLArea.RE_email""",anonymous,gogo,"Error in Reg-Expression ""HTMLArea.RE_email""
You should correct it to

HTMLArea.RE_email = /[\.a-z0-9_]{3,}@[a-z0-9_-]{2,}(\.[a-z0-9_-]{2,})+/i;
instead of 
HTMLArea.RE_email = /[a-z0-9_]{3,}@[a-z0-9_-]{2,}(\.[a-z0-9_-]{2,})+/i;

If you type a adress like firstname.lastname@domain.tld the Reg-Expression will make it to ""mailto:lastname@domaind.tld""",defect,closed,high,Version 1.0,Xinha Core,trunk,critical,fixed,HTMLArea.RE_email,