Fix the "no fleet state available" message

Take this node's fleet state from `known_nodes` instead of the variables set in `update_snapshot`

nucypher/acumen/perception.py

@@ -77,6 +77,9 @@ class FleetSensor:
     def __repr__(self):
         return self._nodes.__repr__()
 
+    def population(self):
+        return len(self) + len(self.additional_nodes_to_track)
+
     @property
     def checksum(self):
         return self._checksum

nucypher/network/nodes.py

@@ -855,7 +855,7 @@ class Learner:
             current_teacher.update_snapshot(checksum=checksum,
                                             updated=maya.MayaDT(
                                                 int.from_bytes(fleet_state_updated_bytes, byteorder="big")),
-                                            number_of_known_nodes=len(self.known_nodes))
+                                            number_of_known_nodes=self.known_nodes.population())
             return FLEET_STATES_MATCH
 
         # Note: There was previously a version check here, but that required iterating through node bytestrings twice,

nucypher/network/templates/basic_status.mako

@@ -45,7 +45,12 @@ NO FLEET STATE AVAILABLE
 
 
 <%def name="fleet_state_icon_from_state(state)">
-${fleet_state_icon(state.checksum, state.nickname, len(state))}
+${fleet_state_icon(state.checksum, state.nickname, len(state.nodes))}
+</%def>
+
+
+<%def name="fleet_state_icon_from_known_nodes(state)">
+${fleet_state_icon(state.checksum, state.nickname, state.population())}
 </%def>
 
 
@@ -170,9 +175,7 @@ ${fleet_state_icon(state.checksum, state.nickname, len(state))}
         </tr>
         <tr>
             <td><i>Fleet state:</i></td>
-            <td>    ${fleet_state_icon(this_node.fleet_state_checksum,
-                       this_node.fleet_state_nickname,
-                       this_node.fleet_state_population)}</td>
+            <td>${fleet_state_icon_from_known_nodes(this_node.known_nodes)}</td>
         </tr>
         <tr>
             <td><i>Previous states:</i></td>