Convert empty values to none or 0.

coordinator/ProcessorSurveysWRT.py

@@ -22,6 +22,7 @@ add_filters_to_sublogger(logger)
 
 # Cases to convert WRT categories to expected short name category or value
 cases_incident = {
+    '':'none',
     'N':'none',
     'L':'low',
     'M':'medium',
@@ -29,6 +30,7 @@ cases_incident = {
     }
 
 cases_severity = {
+    '':0,
     'N':0,
     'L':10,
     'M':30,