ClientScript : saveRecord : commitLine not working on a Journal Entry

Hello,

I have a simple piece of SS2.0 code that is designed to check a few conditions and insert two lines into a Journal Entry on save of the record via client scripting. The curious thing is even though I am using commitLine, the lines I am trying to add to the JE never actually insert and instead overwrite one another into the first sublist line. Is this a SS2.0 bug or am I missing something?

   var recObj = scriptContext.currentRecord;    var rulesObj.lines = [{      "sublist": "line",      "account": "51010000 PURCHASES-RED",      "acctid": "295",      "entry": "debit"  }, {      "sublist": "line",      "account": "11020000 CCCC-A/C #619727799",      "acctid": "417",      "entry": "credit"  }];      util.each(rulesObj.lines, function(field){                        var lineNumber = recObj.findSublistLineWithValue({                          sublistId: field.sublist,                          fieldId: 'account',                          value: field.acctid                      });                        if(lineNumber==-1){                            recObj.selectNewLine({                              sublistId: field.sublist                          });                        }else{                            recObj.selectLine({                              sublistId: field.sublist,                              line: lineNumber                          });                        }                               recObj.setCurrentSublistValue({                                  sublistId: field.sublist,                                  fieldId: 'account',                                  value: field.acctid                              });                                recObj.setCurrentSublistValue({                                  sublistId: field.sublist,                                  fieldId: field.entry, // either debit or credit based on object                                  value: somecost.toFixed(2)                              });                          recObj.commitLine({                          sublistId: field.sublist                      });    });