first commit

core/modules/user/user.views_execution.inc

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+<?php
+
+/**
+ * @file
+ * Provide views runtime hooks for user.module.
+ */
+
+use Drupal\views\ViewExecutable;
+
+/**
+ * Implements hook_views_query_substitutions().
+ *
+ * Allow replacement of current user ID so we can cache these queries.
+ */
+function user_views_query_substitutions(ViewExecutable $view) {
+  return ['***CURRENT_USER***' => \Drupal::currentUser()->id()];
+}