MAGETWO-83706: Scheduled Update to existing Group Price / Special Price removes the previously configured price, or results in changes not being saved

Author: le0n4eg

app/code/Magento/Catalog/Model/Product/Attribute/Backend/TierPrice/SaveHandler.php

@@ -72,7 +72,7 @@ public function __construct(
      * @return \Magento\Catalog\Api\Data\ProductInterface|object
      * @throws \Magento\Framework\Exception\NoSuchEntityException
      * @throws \Magento\Framework\Exception\LocalizedException
-     * @throws \Magento\Framework\Exception\RuntimeException
+     * @throws \Magento\Framework\Exception\InputException
      * @SuppressWarnings(PHPMD.UnusedFormalParameter)
      */
     public function execute($entity, $arguments = [])