diff --git a/lib.php b/lib.php
index 2d30ae4..a2b7136 100644
--- a/lib.php
+++ b/lib.php
@@ -361,7 +361,9 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
             );
         }
 
-        $isreportallowed = !$isstudent || $pchkorgconfigmodel->show_report_for_student($cmid) === true;
+        $isreportallowed = !$isstudent
+            || $pchkorgconfigmodel->show_report_for_student($cmid) === true
+            || $pchkorgconfigmodel->show_report_for_student($cmid) === null;
 
         // Only for some type of account, method will call a remote HTTP API.
         // The API will be called only once, because result is static.
diff --git a/version.php b/version.php
index f824a4a..7fe352e 100644
--- a/version.php
+++ b/version.php
@@ -26,9 +26,9 @@ defined('MOODLE_INTERNAL') || die();
 if (!isset($plugin)) {
     $plugin = new stdClass();
 }
-$plugin->version = 2022103112;
+$plugin->version = 2022103115;
 $plugin->requires = 2020061501; // Requires Moodle 3.9 .
-$plugin->release = 'v3.12.2';
+$plugin->release = 'v3.12.3';
 $plugin->component = 'plagiarism_pchkorg';
 $plugin->maturity = MATURITY_STABLE;
 $plugin->dependencies = array(