Stop get_x from emptying the iterable of members/heroes/troops for …

…later calls.

coc/clans.py

@@ -210,12 +210,11 @@ def get_member(self, tag: str) -> typing.Optional[ClanMember]:
         The member who matches the tag provided: Optional[:class:`ClanMember`]
         """
         tag = correct_tag(tag)
-        dict_members = self._members
-        if not dict_members:
-            dict_members = self._members = {m.tag: m for m in self._iter_members}
+        if not self._members:
+            _ = self.members
 
         try:
-            return dict_members[tag]
+            return self._members[tag]
         except KeyError:
             return None
 

coc/players.py

@@ -333,13 +333,11 @@ def get_achievement(self, name: str, default_value=None) -> typing.Optional[Achi
         Optional[:class:`Achievement`]
             The returned achievement or the ``default_value`` if not found, which defaults to ``None``..
         """
-        dict_achievements = self._achievements
-        if dict_achievements is None:
+        if not self._achievements:
             _ = self.achievements
-            dict_achievements = self._achievements
 
         try:
-            return dict_achievements[name]
+            return self._achievements[name]
         except KeyError:
             return default_value
 
@@ -479,12 +477,11 @@ def get_hero(self, name: str, default_value=None) -> typing.Optional[Hero]:
         Optional[:class:`Hero`]
             The returned hero or the ``default_value`` if not found, which defaults to ``None``..
         """
-        dict_heroes = self._heroes
-        if dict_heroes is None:
-            dict_heroes = self._heroes = {h.name: h for h in self._iter_heroes}
+        if not self._heroes:
+            _ = self.heroes
 
         try:
-            return dict_heroes[name]
+            return self._heroes[name]
         except KeyError:
             return default_value
 
@@ -513,11 +510,10 @@ def get_spell(self, name: str, default_value=None) -> typing.Optional[Spell]:
         Optional[:class:`Spell`]
             The returned spell or the ``default_value`` if not found, which defaults to ``None``..
         """
-        dict_spells = self._spells
-        if dict_spells is None:
-            dict_spells = self._spells = {s.name: s for s in self._iter_spells}
+        if not self._spells:
+            _ = self.spells
 
         try:
-            return dict_spells[name]
+            return self._spells[name]
         except KeyError:
             return default_value