We are noticing a bug that happens when we update the corporate directory XML. If you set the User DN lookup to imLoginID in Siteminder, and make a change to the IDM Corporate XML, the login value in Siteminder gets changed to UID.
Release : 14.3
Component : IdentityMinder(Identity Manager)
Is built from this:
The XML parser that IM uses is additive only. it will not "skip" certain parts, so at this time I would expect any change to the directory XML and import would reset the values in SM.