Fix crash in ConfigItem::ActivateItems

refs #10643

diff --git a/lib/config/configitem.cpp b/lib/config/configitem.cpp
index 9e172d817e13c46617fab1e198f026881f41424a..51d1301eb46412d643747b350ae6c4a33dd46337 100644 (file)
--- a/lib/config/configitem.cpp
+++ b/lib/config/configitem.cpp
@@ -313,8 +313,10 @@ void ConfigItem::Register(void)
  */
 void ConfigItem::Unregister(void)
 {
-       if (m_Object)
+       if (m_Object) {
                m_Object->Unregister();
+               m_Object.reset();
+       }
 
        boost::mutex::scoped_lock lock(m_Mutex);
        m_UnnamedItems.erase(std::remove(m_UnnamedItems.begin(), m_UnnamedItems.end(), this), m_UnnamedItems.end());