Fix so session's search scope is not used if search is not active (#8199)

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## Unreleased
 
 - Fix importing contacts with no email address (#8227)
+- Fix so session's search scope is not used if search is not active (#8199)
 
 ## Release 1.5.0
 

program/actions/mail/index.php

@@ -98,8 +98,8 @@ class rcmail_action_mail_index extends rcmail_action
             if (empty($rcmail->action)) {
                 $rcmail->output->set_env('search_mods', self::search_mods());
 
-                $scope = rcube_utils::get_input_value('_scope', rcube_utils::INPUT_GET);
-                if (!$scope && isset($_SESSION['search_scope'])) {
+                $scope = rcube_utils::get_input_string('_scope', rcube_utils::INPUT_GET);
+                if (!$scope && isset($_SESSION['search_scope']) && $rcmail->output->get_env('search_request')) {
                     $scope = $_SESSION['search_scope'];
                 }