[JES] Validate observer account exists. I'm not sure if we need this. I...

[JES] Validate observer account exists. I'm not sure if we need this. I suppose it could impact performance if the account didn't exist in the database?

hive/db/sql_scripts/bridge_get_ranked_post_for_all.sql

@@ -154,7 +154,7 @@ DECLARE
   __observer_id INT;
 BEGIN
   __post_id = find_comment_id( _author, _permlink, True );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id(_observer, True);
   IF __post_id <> 0 THEN
       SELECT ( hp.payout + hp.pending_payout ) INTO __payout_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;

hive/db/sql_scripts/bridge_get_ranked_post_for_communities.sql

@@ -383,7 +383,7 @@ BEGIN
   IF __post_id <> 0 THEN
       SELECT ( hp.payout + hp.pending_payout ) INTO __payout_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id(_observer, True);
   RETURN QUERY SELECT
       hp.id,
       hp.author,

hive/db/sql_scripts/bridge_get_ranked_post_for_tag.sql

@@ -166,7 +166,7 @@ BEGIN
       SELECT ( hp.payout + hp.pending_payout ) INTO __payout_limit FROM hive_posts hp WHERE hp.id = __post_id;
   END IF;
   __hive_tag = ARRAY_APPEND( __hive_tag, find_tag_id( _tag, True ) );
-  __observer_id = find_account_id(_observer, False);
+  __observer_id = find_account_id(_observer, True);
   RETURN QUERY SELECT
       hp.id,
       hp.author,