Core/DBLayer: proper 6x account unban

- Thanks @Shauren
- Unbanning accounts in 6x should set unbandate = now
(UNIX_TIMESTAMP() instead of NOW() due to unbandate being an int, not a timestamp)
- 'Active' updates remain so the "account is not banned" checks continue functioning

src/server/shared/Database/Implementation/LoginDatabase.cpp

@@ -46,7 +46,7 @@ void LoginDatabaseConnection::DoPrepareStatements()
     PrepareStatement(LOGIN_INS_IP_BANNED, "INSERT INTO ip_banned (ip, bandate, unbandate, bannedby, banreason) VALUES (?, UNIX_TIMESTAMP(), UNIX_TIMESTAMP()+?, ?, ?)", CONNECTION_ASYNC);
     PrepareStatement(LOGIN_DEL_IP_NOT_BANNED, "DELETE FROM ip_banned WHERE ip = ?", CONNECTION_ASYNC);
     PrepareStatement(LOGIN_INS_ACCOUNT_BANNED, "INSERT INTO account_banned VALUES (?, UNIX_TIMESTAMP(), UNIX_TIMESTAMP()+?, ?, ?, 1)", CONNECTION_ASYNC);
-    PrepareStatement(LOGIN_UPD_ACCOUNT_NOT_BANNED, "UPDATE account_banned SET active = 0 WHERE id = ? AND active != 0", CONNECTION_ASYNC);
+    PrepareStatement(LOGIN_UPD_ACCOUNT_NOT_BANNED, "UPDATE account_banned SET unbandate = UNIX_TIMESTAMP(), active = 0 WHERE id = ? AND active != 0", CONNECTION_ASYNC);
     PrepareStatement(LOGIN_DEL_REALM_CHARACTERS_BY_REALM, "DELETE FROM realmcharacters WHERE acctid = ? AND realmid = ?", CONNECTION_ASYNC);
     PrepareStatement(LOGIN_DEL_REALM_CHARACTERS, "DELETE FROM realmcharacters WHERE acctid = ?", CONNECTION_ASYNC);
     PrepareStatement(LOGIN_INS_REALM_CHARACTERS, "INSERT INTO realmcharacters (numchars, acctid, realmid) VALUES (?, ?, ?)", CONNECTION_ASYNC);