message: bug: corrige la valeur initiale de situationGate
diff: @@ -125,7 +125,7 @@ export default reduceReducers(
  analysedSituation: (state = []) => state,
  - situationGate: (state = state => name => null) => state,
  + situationGate: (state = name => null) => state,
  refine: (state = false) => state,
  themeColours,
  