chore: typos

wpdb::prepare requires placeholder. so, filtered queryies from prepare
if there is no placeholder.

Author: abdul-kaioum

src/Model.php

@@ -342,7 +342,7 @@ public function getOriginal()
 
     public function getInstanceFromBuilder($result, $setAttribute = false)
     {
-        if (\count($result) == 0) {
+        if (!\is_array($result) || \count($result) == 0) {
             return false;
         }
 

src/QueryBuilder.php

@@ -976,7 +976,7 @@ public function prepare($sql = null)
         }
 
         return empty($this->bindings)
-         || strpos($sql, '%s') === false
+         || strpos($sql, '%') === false
          ? $sql : Connection::prepare($sql, $this->bindings);
     }