Issue #2656442 by swentel: Argument missing the 'context' key for 'decimal places' context

core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/DecimalFormatter.php

@@ -55,7 +55,7 @@ public function settingsForm(array $form, FormStateInterface $form_state) {
     $range = range(0, 10);
     $elements['scale'] = array(
       '#type' => 'select',
-      '#title' => t('Scale', array(), array('decimal places')),
+      '#title' => t('Scale', array(), array('context' => 'decimal places')),
       '#options' => array_combine($range, $range),
       '#default_value' => $this->getSetting('scale'),
       '#description' => t('The number of digits to the right of the decimal.'),

core/lib/Drupal/Core/Field/Plugin/Field/FieldType/DecimalItem.php

@@ -81,7 +81,7 @@ public function storageSettingsForm(array &$form, FormStateInterface $form_state
     $range = range(0, 10);
     $element['scale'] = array(
       '#type' => 'select',
-      '#title' => t('Scale', array(), array('decimal places')),
+      '#title' => t('Scale', array(), array('context' => 'decimal places')),
       '#options' => array_combine($range, $range),
       '#default_value' => $settings['scale'],
       '#description' => t('The number of digits to the right of the decimal.'),