core/lib/Drupal/Core/Extension/ModuleInstaller.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/core/lib/Drupal/Core/Extension/ModuleInstaller.php b/core/lib/Drupal/Core/Extension/ModuleInstaller.php
index 65a132d..b4937c0 100644
--- a/core/lib/Drupal/Core/Extension/ModuleInstaller.php
+++ b/core/lib/Drupal/Core/Extension/ModuleInstaller.php
@@ -288,6 +288,8 @@ public function install(array $module_list, $enable_dependencies = TRUE) {
         // Allow the module to perform install tasks.
         $this->moduleHandler->invoke($module, 'install');
 
+        // Refresh any static caches in the Cache class (e.g. to ensure it has
+        // the correct set of cache contexts).
         Cache::refresh();
 
         // Record the fact that it was installed.