Prevent quick program starter against accidental double click

qtgui/quickopensessioncontroller.py

@@ -151,8 +151,7 @@ class StarterClientItem(QtWidgets.QListWidgetItem):
                 self._setIconOverlay("hidden")
         else:
             self._setIconOverlay("ready")
-
-
+            
         self.setFlags(QtCore.Qt.ItemIsEnabled) #We can still mouseClick through parent signal when set to NoItemFlags
 
     def removed(self):
@@ -163,14 +162,17 @@ class StarterClientItem(QtWidgets.QListWidgetItem):
         self.setFlags(QtCore.Qt.ItemIsEnabled)
         self._setIconOverlay("stopped")
 
-    def handleClick(self):
+    def handleClick(self):        
         alreadyInSession = api.executableInSession(self.argodejoExec)
-        #Development-paranoia Start
-        if self.nsmClientDict:
+        #Paranoia Start        
+        if self.nsmClientDict is None and alreadyInSession:
+            #Caught double-click. do nothing, this is a user-accident            
+            return
+        elif self.nsmClientDict:
             assert alreadyInSession
         elif alreadyInSession:
             assert self.nsmClientDict
-        #Development-paranoia End
+        #Paranoia End
 
         if not alreadyInSession:
             api.clientAdd(self.argodejoExec) #triggers status update callback which activates our item.