Fix regression cause by #1605. When returning the addConnectionExecut…

…or pool sizes

back to defaults, the core pool size must be changed before the maximum pool size.

src/main/java/com/zaxxer/hikari/pool/HikariPool.java

@@ -146,8 +146,8 @@ public HikariPool(final HikariConfig config)
             quietlySleep(MILLISECONDS.toMillis(100));
          }
 
-         addConnectionExecutor.setMaximumPoolSize(1);
          addConnectionExecutor.setCorePoolSize(1);
+         addConnectionExecutor.setMaximumPoolSize(1);
       }
    }