remove service pending call from dict instead of nullifying the entry

diff --git a/cloudeebus/cloudeebus.py b/cloudeebus/cloudeebus.py
index b54743f..936dd3e 100755 (executable)
--- a/cloudeebus/cloudeebus.py
+++ b/cloudeebus/cloudeebus.py
@@ -509,7 +509,7 @@ class CloudeebusService:
                     errorCB(result)
                 else:
                     errorCB()
-            self.servicePendingCalls[methodId] = None
+            del self.servicePendingCalls[methodId]
         else:
             raise Exception("No methodID " + methodId)