Querying a versioned view on the default version can display incorrect results after setting the version using version_util.set_current_version('DEFAULT').
Execute the new package version_util.set_default after switching to a user version. Editing versioned data in Oracle using SQL - 10.1 help > Read the section: Switch from editing a named version back to editing DEFAULT<a href="http://resources.arcgis.com/en/help/main/10.1/index.html#//006z000000vm000000" target="_blank">http://resources.arcgis.com/en/help/main/10.1/index.html#//006z000000vm000000</a>------------------