[Linux-HA] duplicated node

[Frank]

Hi,
we have a cluster with 2 nodes with heartbeat 2.1.2 and Red Hat Linux

after setting one node to standby, stopping heartbeat on it, 
uninstalling heatbeat, removing all heartbeat directories and
installing heartbeat again, configuration detect two nodes with the same 
name but different id:

Node: polonio (296f7c6c-9698-40f1-af8e-5d4917318701): OFFLINE
Node: einstenio (30b5f04e-b6bd-4c89-ab79-629590a0e7ae): online
Node: polonio (40eaf81e-ac04-4099-bea7-99d84ea10d0d): online

node section in cib.xml is

<nodes>
       <node uname="polonio" type="normal" 
id="296f7c6c-9698-40f1-af8e-5d4917318701">
         <instance_attributes 
id="nodes-296f7c6c-9698-40f1-af8e-5d4917318701">
           <attributes>
             <nvpair name="standby" 
id="standby-296f7c6c-9698-40f1-af8e-5d4917318701" value="off"/>
           </attributes>
         </instance_attributes>
       </node>
       <node id="30b5f04e-b6bd-4c89-ab79-629590a0e7ae" uname="einstenio" 
type="normal"/>
       <node id="40eaf81e-ac04-4099-bea7-99d84ea10d0d" uname="polonio" 
type="normal"/>
     </nodes>

Is there a safe way to remove unused node?
Thanks

Frank

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