ODI 12c 12.1.2 Export issue fixing with bug : Patch 17671595  Patch 17671595: CANNOT EXPORT WORK REPOSITORY WITH SOME PROJECTS

Oracle Data Integrator - Version 12.1.2.0.0 to 12.1.2.0.1 [Release 12c]

Exporting an ODI 12c 12.1.2 Work Repository using the standard export tool fails with the following error:

java.lang.RuntimeException: java.lang.NullPointerException
  at com.sunopsis.dwg.smartie.SmartExportOrderList$1$1.doAction(SmartExportOrderList.java:561)
  at oracle.odi.core.persistence.dwgobject.DwgObjectTemplate.execute(DwgObjectTemplate.java:203)
  at com.sunopsis.dwg.smartie.SmartExportOrderList$1.doInTransaction(SmartExportOrderList.java:551)
  at oracle.odi.core.persistence.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:99)
  at com.sunopsis.dwg.smartie.SmartExportOrderList.printExportObjects(SmartExportOrderList.java:545)
  at com.sunopsis.dwg.smartie.SmartExportUtils.exportToXml(SmartExportUtils.java:2889)
  at com.sunopsis.dwg.smartie.SmartExportUtils.exportToXml(SmartExportUtils.java:2763)
  at oracle.odi.impexp.smartie.impl.DependencyServiceImpl.exportToXml(DependencyServiceImpl.java:429)
  at oracle.odi.ui.smartie.exp.ExportSmartDialog.exportToXml(ExportSmartDialog.java:1462)
  at oracle.odi.ui.smartie.exp.ExportSmartDialog$1.doInBackground(ExportSmartDialog.java:1252)
  at oracle.odi.ui.smartie.exp.ExportSmartDialog$1.doInBackground(ExportSmartDialog.java:1220)
  at oracle.odi.ui.framework.AbsUIRunnableTask.run(AbsUIRunnableTask.java:258)
  at oracle.ide.dialogs.ProgressBar.run(ProgressBar.java:920)
  at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.NullPointerException
  at com.sunopsis.dwg.dbobj.SnpMcConstraint.getForeignKeyLst(SnpMcConstraint.java:104)
  at com.sunopsis.dwg.ImpExpFkXrefManager.addFkXRefs(ImpExpFkXrefManager.java:164)
  at com.sunop