Fixed saving Flex configuration with ignored values becoming null

CHANGELOG.md

@@ -8,6 +8,7 @@
     * Regression: Fixed fatal error in blueprints [#2811](https://github.com/getgrav/grav/issues/2811)
     * Regression: Fixed bad method call in FlexDirectory::getAuthorizeRule()
     * Regression: Fixed fatal error in admin if the site has custom permissions in `onAdminRegisterPermissions`
+    * Grav 1.7: Fixed saving Flex configuration with ignored values becoming null
 
 # v1.7.0-rc.5
 ## 02/03/2020

system/src/Grav/Common/Data/BlueprintSchema.php

@@ -191,6 +191,10 @@ class BlueprintSchema extends BlueprintSchemaBase implements ExportInterface
         }
 
         foreach ($data as $key => $field) {
+            if (null === $field && !$missingValuesAsNull) {
+                continue;
+            }
+
             $val = $rules[$key] ?? $rules['*'] ?? null;
             $rule = \is_string($val) ? $this->items[$val] : $this->items[$parent . $key] ?? null;
 

system/src/Grav/Framework/Flex/FlexDirectoryForm.php

@@ -475,7 +475,7 @@ class FlexDirectoryForm implements FlexDirectoryFormInterface, \JsonSerializable
     protected function filterData($data = null): void
     {
         if ($data instanceof Data) {
-            $data->filter(true, false);
+            $data->filter(false, true);
         }
     }
 }