I have an end user who recently modified an existing InfoPath form -- really just adding a new yes/no check box. Nothing too fancy.
When the form is published, filled out and submitted, the new column's value is not being promoted accurately to the forms library. XML for the form as submitted is below.
The new field is <my:TDBK>. It is true in the XML, and displays false in the list.
<?xml version="1.0" encoding="utf-8"?><?mso-infoPathSolution name="urn:schemas-microsoft-com:office:infopath:ATMProcHOTDOC:-myXSD-2011-05-20T09-52-55" solutionVersion="1.0.0.1148" productVersion="14.0.0.0" PIVersion="1.0.0.0" href="http://xxxxxxx.xxxxx.com/sites/xxxx/Chad%20Test/Forms/Axxxxxxx.xsn"?><?mso-application progid="InfoPath.Document" versionProgid="InfoPath.Document.2"?><my:myFields xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:dfs="http://schemas.microsoft.com/office/infopath/2003/dataFormSolution" xmlns:s0="http://microsoft.com/webservices/SharePointPortalServer/UserProfileService" xmlns:s1="http://microsoft.com/wsdl/types/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:ns1="http://schemas.xmlsoap.org/wsdl/" xmlns:my="http://schemas.microsoft.com/office/infopath/2003/myXSD/2011-05-20T09:52:55" xmlns:xdServerInfo="http://schemas.microsoft.com/office/infopath/2009/xslt/ServerInfo" xmlns:xd="http://schemas.microsoft.com/office/infopath/2003" xml:lang="en-US"><my:Activity_Date>2013-08-29</my:Activity_Date><my:Text_Subject>CHECKING ALL THE BOXES</my:Text_Subject><my:Text_Author>dybdahl, chad</my:Text_Author><my:Processor>true</my:Processor><my:ATM>false</my:ATM><my:ACES>true</my:ACES><my:AFFN>true</my:AFFN><my:MVNT>true</my:MVNT><my:BCFS>true</my:BCFS><my:CITI>true</my:CITI><my:CUSA>true</my:CUSA><my:CUSW>true</my:CUSW><my:EBTG>true</my:EBTG><my:FISA>true</my:FISA><my:FISB>true</my:FISB><my:GLBL>true</my:GLBL><my:GOV1>true</my:GOV1><my:GOV2>true</my:GOV2><my:GTWY>true</my:GTWY><my:IFSA>true</my:IFSA><my:ISPA>true</my:ISPA><my:MCDP>true</my:MCDP><my:NYCE>true</my:NYCE><my:PPSA>true</my:PPSA><my:RGNL>true</my:RGNL><my:TRN1>true</my:TRN1><my:TextBox_Summary><html xmlns="http://www.w3.org/1999/xhtml" xml:space="preserve"><p>none</p></html></my:TextBox_Summary><my:TextBox_Instructions></my:TextBox_Instructions><my:Activity_Time>16:00:00</my:Activity_Time><my:Current_State>Pending Approval</my:Current_State><my:Comments></my:Comments><my:ItemID>ATM_Proc-2013-08-27T10:08:51</my:ItemID><my:CU24>true</my:CU24><my:End_Date>2013-08-29</my:End_Date><my:End_Time>16:00:00</my:End_Time><my:group1></my:group1><my:Option>false</my:Option><my:UserID></my:UserID><my:ApproverID></my:ApproverID><my:Approve_Reject></my:Approve_Reject><my:Reject_Reason></my:Reject_Reason><my:Verify_Switch_Selection>Yes</my:Verify_Switch_Selection><my:TDBK>true</my:TDBK><my:field2></my:field2><my:PROC_ATM_GROUP></my:PROC_ATM_GROUP></my:myFields>