reset selected skill id when provider is clicked

source/RobotAPI/gui-plugins/SkillManagerPlugin/SkillManagerMonitorWidgetController.cpp

@@ -502,7 +502,9 @@ namespace armarx
 
         if (!current->parent())
         {
-            // no parent available. Perhaps provider clicked?
+            // no parent available. Perhaps provider clicked? Reset selected skill.
+            selectedSkill.skillId.providerId->providerName = "";
+            selectedSkill.skillId.skillName = "";
             return;
         }