BugFix: Clan.get_member didn't return a member.

Author: mathsman5133

coc/clans.py

@@ -220,7 +220,7 @@ def get_member(self, tag: str) -> typing.Optional[ClanMember]:
         tag = correct_tag(tag)
         dict_members = self._members
         if not dict_members:
-            dict_members = self._members = {m.name: m for m in self.__iter_members}
+            dict_members = self._members = {m.tag: m for m in self.__iter_members}
 
         try:
             return dict_members[tag]