core (xmpp): raise InternalError when a new profile Client is created while there is already one in host

sat/core/xmpp.py

@@ -168,6 +168,9 @@ class SatXMPPEntity(object):
         password = yield host.memory.asyncGetParamA(
             "Password", "Connection", profile_key=profile
         )
+        if profile in host.profiles:
+            raise exceptions.InternalError(
+                f"There is already a profile of name {profile} in host")
         entity = host.profiles[profile] = cls(
             host, profile, jid.JID(host.memory.getParamA("JabberID", "Connection",
             profile_key=profile)), password,