Results: Fix timestamps order.

src/Model/Results/Results.py

@@ -164,7 +164,7 @@ class Results(SQLSubModel):
             ts = struct.unpack(sf, timestamps_bytes)
             new_results.set("timestamps", ts)
 
-            data["timestamps"] = ts
+            data["timestamps"] = sorted(ts)
             new_results._river = River._db_load(execute, data)
 
             new = new_results
@@ -192,7 +192,7 @@ class Results(SQLSubModel):
             solver_name = self._solver._name
             solver_type = self._solver._type
 
-        ts = self.get("timestamps")
+        ts = sorted(self.get("timestamps"))
         sf = ">" + ''.join(itertools.repeat("d", len(ts)))
 
         execute(

src/Model/Results/River/River.py

@@ -65,7 +65,8 @@ class Profile(SQLSubModel):
 
     def get_key(self, key):
         res = list(
-            map(lambda ts: self._data[ts][key], self._data)
+            map(lambda ts: self._data[ts][key],
+                sorted(self._data.keys()))
         )
         return res