Adjustments values were not loaded after the ajax refresh triggered by the "Update Qty's" button

Adjustments values were not loaded after the ajax refresh triggered by the "Update Qty's" button. The function named getBaseAdjustmentFeePositive() should be $_source->getBaseAdjustmentPositive() without the Fee in order to work.

Author: nikoelgatito

app/code/Magento/Sales/view/adminhtml/templates/order/creditmemo/create/totals/adjustments.phtml

@@ -24,7 +24,7 @@
         <td>
             <input type="text"
                    name="creditmemo[adjustment_positive]"
-                   value="<?= /* @escapeNotVerified */ $_source->getBaseAdjustmentFeePositive()*1 ?>"
+                   value="<?= /* @escapeNotVerified */ $_source->getBaseAdjustmentPositive()*1 ?>"
                    class="input-text admin__control-text not-negative-amount"
                    id="adjustment_positive" />
         </td>
@@ -34,7 +34,7 @@
         <td>
             <input type="text"
                    name="creditmemo[adjustment_negative]"
-                   value="<?= /* @escapeNotVerified */ $_source->getBaseAdjustmentFeeNegative()*1 ?>"
+                   value="<?= /* @escapeNotVerified */ $_source->getBaseAdjustmentNegative()*1 ?>"
                    class="input-text admin__control-text not-negative-amount"
                    id="adjustment_negative"/>
             <script>