Portlet caching

["Davide Ficano" <davide.ficano@xxxxxx>]

I have the same (JSR168) portlet called from two different navigation paths,
suppose /home/path1 and /home/deeper/path2.

If I call portlet using /home/path1 with different request parameter
I **ALWAYS** obtain the correct result
suppose 
/home/path1?portal:componentId=xxx&portal:type=render&itemId=1  itemId 
received by portlet is 1
/home/path1?portal:componentId=xxx&portal:type=render&itemId=2  itemId 
received by portlet is 2

If I call portlet using /home/deeper/path2 I receive the parameter passed 
first time is called
suppose

/home/deeper/path2?portal:componentId=xxx&portal:type=render&itemId=1  itemId 
received by portlet is 1
/home/deeper/path2?portal:componentId=xxx&portal:type=render&itemId=2  itemId 
received by portlet is **1**

The <pageReference> for /home/deeper/path2 refers to the same page used by 
/home/path1