Fixed FlexObject::exists() failing sometimes just after the object has been saved

CHANGELOG.md

@@ -18,6 +18,7 @@
     * Fixed non-existing Flex object having a bad media folder
     * Fixed collections using `page@.self:` should allow modular pages if requested
     * Fixed an error when trying to delete a file from non-existing Flex Object
+    * Fixed `FlexObject::exists()` failing sometimes just after the object has been saved
     
 # v1.6.11
 ## 06/21/2019

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

@@ -550,6 +550,15 @@ class FlexObject implements FlexObjectInterface, FlexAuthorizeInterface
             }
         }
 
+        // FIXME: For some reason locator caching isn't cleared for the file, investigate!
+        $locator = Grav::instance()['locator'];
+        $locator->clearCache();
+
+        // Make sure that the object exists before continuing (just in case).
+        if (!$this->exists()) {
+            throw new \RuntimeException('Saving failed: Object does not exist!');
+        }
+
         if (method_exists($this, 'saveUpdatedMedia')) {
             $this->saveUpdatedMedia();
         }