Patch#13646173:R12.OWF.B : File Version Not Updated After Patching
Hi Andry,
Welcome to patching community !!!
On R12.1.3, patch 13646173:R12.OWF.B was 
suggested to upgrade the file ReassignNotificationVO.xml from version 
120.0 to version 120.0.12010000.2. 
But, after the patch application, the
 file system still shows the old version of ReassignNotificationVO.xml 
under $JAVA_TOP/oracle/apps/fnd/wf/worklist./server/ 
$ strings -a $JAVA_TOP/oracle/apps/fnd/wf/worklist/server/ReassignNotificationVO.xml | grep Header
<!-- $Header: ReassignNotificationVO.xml 120.0 2005/05/07 11:54:11 appldev noship $ --> 
Thanks and Regards
Samya Sourav