Fixes namespace

lib/assets/javascripts/cartodb3/editor/widgets-form/data/widgets-form-formula-data-schema-model.js

@@ -85,7 +85,7 @@ module.exports = cdb.core.Model.extend({
       });
     } else {
       return [{
-        label: _t('editor.widgets.loading'),
+        label: _t('editor.widgets.data.loading'),
         disabled: true
       }];
     }

lib/assets/javascripts/cartodb3/editor/widgets-form/data/widgets-form-histogram-data-schema-model.js

@@ -78,7 +78,7 @@ module.exports = cdb.core.Model.extend({
         });
     } else {
       return [{
-        label: _t('editor.widgets.loading'),
+        label: _t('editor.widgets.data.loading'),
         disabled: true
       }];
     }

lib/assets/javascripts/cartodb3/editor/widgets-form/data/widgets-form-time-series-data-schema-model.js

@@ -88,7 +88,7 @@ module.exports = cdb.core.Model.extend({
         });
     } else {
       return [{
-        label: _t('editor.widgets.loading'),
+        label: _t('editor.widgets.data.loading'),
         disabled: true
       }];
     }