I'm Having the above issue. When using the following Code within a model.  

<div class="md-form">
  <input type="text" id="form5" class="form-control" name="manufacturer" value="<?php echo $MSG['manufacturer']?>">
  <label for="form5">Manufacturer</label>
</div>
<div class="md-form">
  <input type="text" id="form6" class="form-control" name="itemName" value="<?php echo $MSG['name']?>">
  <label for="form6">Name</label>
</div>
<div class="md-form">
  <input type="text" id="form7" class="form-control" name="img" value="<?php echo $MSG['img']?>">
  <label for="form7">Image</label>
</div>
<div class="md-form">
  <input type="number" id="form8" class="form-control" name="price" value="<?php echo $MSG['price']?>">
  <label for="form8">Price</label>
</div>
<div class="md-form">
  <input type="text" id="form9" class="form-control" name="supplier" value="<?php echo $MSG['supplier']?>">
  <label for="form9">Supplier</label>
</div>
<div class="md-form">
  <input type="text" id="form10" class="form-control" name="manual" value="<?php echo $MSG['manual']?>">
  <label for="form10">Manual</label>
</div>
<!--Material textarea-->
<div class="md-form">
  <input type="text" id="form11" class="form-control" name="description" value="<?php echo $MSG['description']?>">
  <label for="form11">Description</label>
</div>