Unexpirable diseases & Holy Symbol patch

Fixed diseases becoming unexpirable after trying to change channels or entering the Cash Shop.
Fixed Holy Symbol acting oddly in solo scenario.
Adjusted Summon Sack lv. 9, that would try to spawn mobs with inexistent id on the field.

src/client/MapleClient.java

@@ -746,6 +746,7 @@ public class MapleClient {
 			}
 			int state = rs.getInt("loggedin");
 			if (state == LOGIN_SERVER_TRANSITION) {
+                                // Arnah's note: lastlogin is a date-type, in case of login and game servers being of different timezones this becomes broken
 				if (rs.getTimestamp("lastlogin").getTime() + 30000 < System.currentTimeMillis()) {
 					state = LOGIN_NOTLOGGEDIN;
 					updateLoginState(LOGIN_NOTLOGGEDIN);
@@ -1293,8 +1294,10 @@ public class MapleClient {
 		}
                 player.unregisterChairBuff();
 		server.getPlayerBuffStorage().addBuffsToStorage(player.getId(), player.getAllBuffs());
+                server.getPlayerBuffStorage().addDiseasesToStorage(player.getId(), player.getAllDiseases());
                 player.setAwayFromWorld(true);
 		player.cancelAllBuffs(true);
+                player.cancelAllDebuffs();
                 player.cancelBuffExpireTask();
                 player.cancelDiseaseExpireTask();
                 player.cancelSkillCooldownTask();