Updating Process Variable (XML) using Set Value

Hi,

I am having a problem in updating the value in XML variable using SetValue (by XPATH expression). It is deleting my original XML and replacing it by new one. I am out of clue why it is happening so.

My Steps:
1. I have created a variable as XML type and Set it as INPUT, REQUIRED.

2. I am updating this variable using Set Value activity. In my process it is 'locUpdate1'

The original XML is: (value of xmlData)

<xdp:xdp xmlns:xdp="http://ns.adobe.com/xdp/" xmlns:dd="http://ns.adobe.com/data-description/" xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/" timeStamp="2011-01-03T07:31:26Z" uuid="009257fd-3f66-449d-b554-6a095f917b74"><xfa:datasets>        <xfa:data>            <GetUserRoot>                <applicantInformation>                    <UserInfo>                        <UserID1/>                        <UserName1/>                        <UserID2/>                        <UserName2/>                        <UserID3/>                        <UserName3/>                        <CurrentUserID>6967A5DE-D5EB-102D-BF7F-0000C0A8010C</CurrentUserID>                        <CurrentUserName>Sarah Rose</CurrentUserName>                    </UserInfo>                </applicantInformation>                <FSTARGETURL_/>            </GetUserRoot>        </xfa:data>        <dd:dataDescription dd:name="GetUserRoot">            <GetUserRoot>                <applicantInformation>                    <UserInfo>                        <UserID1/>                        <UserName1/>                        <UserID2/>                        <UserName2/>                        <UserID3/>                        <UserName3/>                        <CurrentUserName/>                        <CurrentUserID/>                    </UserInfo>                </applicantInformation>            </GetUserRoot>        </dd:dataDescription>    </xfa:datasets><pdf xmlns="http://ns.adobe.com/xdp/pdf/" href="-4608764380271080676-28"/><xfdf xmlns="http://ns.adobe.com/xfdf/" xml:space="preserve">        <annots/>    </xfdf></xdp:xdp>

After Operating it is changing to

<GetUserRoot>    <applicantInformation>        <UserInfo/>    </applicantInformation></GetUserRoot>

which should not be done.

I just want to copy one element's value into another.

/process_data/xmlData/GetUserRoot/applicantInformation/UserInfo/UserID1 = /process_data/xmlData/GetUserRoot/applicantInformation/UserInfo/CurrentUserID

Result Should be:

<xdp:xdp xmlns:xdp="http://ns.adobe.com/xdp/" xmlns:dd="http://ns.adobe.com/data-description/" xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/" timeStamp="2011-01-03T07:31:26Z" uuid="009257fd-3f66-449d-b554-6a095f917b74">
<xfa:datasets>
        <xfa:data>
            <GetUserRoot>
                <applicantInformation>
                    <UserInfo>
                        <UserID1>6967A5DE-D5EB-102D-BF7F-0000C0A8010C</UserID1>
                        <UserName1>Sarah Rose</UserName1>
                        <UserID2/>
                        <UserName2/>     
                        <UserID3/>
                        <UserName3/>
                        <!-- this is to be coiped in above -->
                        <CurrentUserID>6967A5DE-D5EB-102D-BF7F-0000C0A8010C</CurrentUserID>
                        <CurrentUserName>Sarah Rose</CurrentUserName>
                    </UserInfo>
                </applicantInformation>
                <FSTARGETURL_/>
            </GetUserRoot>
        </xfa:data>
        <dd:dataDescription dd:name="GetUserRoot">
            <GetUserRoot>
                <applicantInformation>
                    <UserInfo>
                        <UserID1/>
                        <UserName1/>
                        <UserID2/>
                        <UserName2/>
                        <UserID3/>
                        <UserName3/>
                        <CurrentUserName/>
                        <CurrentUserID/>
                    </UserInfo>
                </applicantInformation>
            </GetUserRoot>
        </dd:dataDescription>
    </xfa:datasets>
<pdf xmlns="http://ns.adobe.com/xdp/pdf/" href="-4608764380271080676-28"/>
<xfdf xmlns="http://ns.adobe.com/xfdf/" xml:space="preserve">
        <annots/>
    </xfdf>
</xdp:xdp>

Any help what I am doing wrong.

Thanks.

-

Abhinav