Plugin input page is showing <key> values

Hi,

I am developing a plug-in for my Jira aaplication & encountered a problem related to checkbox display.

In my atlassian-plugin.xml, I added below entry -
<properties>
<property>
<key>timeBurnDown</key>
<name>report.burndown.type.label.time</name>
<description>report.burndown.type.description.time</description>
<type>checkbox</type>
</property>
</properties>

I found that the key i.e "timeBurnDown" was being displayed on - configurereport.jsp(see the attachment), which is basically my input screen for plugin.
I looked into the issue & found that in the objectconfiguration_form.jsp, you have to remove two lines(71,72)
<webwork:property value="." />
<webwork:property value="paramValue(.)" />
When I removed these entries the my problem got solved.

Please let me know if my fix is correct or not.
Regards,
Abhishek