Merge pull request #73 from ChromaticHQ/hash-salt-logic

Override hash_salt when empty vs not set.

Author: chadwcarlson

web/sites/default/settings.platformsh.php

@@ -108,7 +108,7 @@
 
   // Set the project-specific entropy value, used for generating one-time
   // keys and such.
-  $settings['hash_salt'] = $settings['hash_salt'] ?? $platformsh->projectEntropy;
+  $settings['hash_salt'] = empty($settings['hash_salt']) ? $platformsh->projectEntropy : $settings['hash_salt'];
 
   // Set the deployment identifier, which is used by some Drupal cache systems.
   $settings['deployment_identifier'] = $settings['deployment_identifier'] ?? $platformsh->treeId;