Re-order upgrade script changes.

db/upgrade.php

@@ -865,6 +865,31 @@ function xmldb_qtype_stack_upgrade($oldversion) {
         upgrade_plugin_savepoint(true, 2021010100, 'qtype', 'stack');
     }
 
+    if ($oldversion < 2023042200) {
+
+        // Define field description to be added to qtype_stack_prt_nodes.
+        $table = new xmldb_table('qtype_stack_prt_nodes');
+        $field = new xmldb_field('description', XMLDB_TYPE_CHAR, '255', null, null, null, '', 'nodename');
+        if (!$dbman->field_exists($table, $field)) {
+            $dbman->add_field($table, $field);
+        }
+
+        // Define question description field to be added to qtype_stack_options.
+        $table = new xmldb_table('qtype_stack_options');
+        $field = new xmldb_field('questiondescription', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, 'questionnote');
+        if (!$dbman->field_exists($table, $field)) {
+            $dbman->add_field($table, $field);
+        }
+        $field = new xmldb_field('questiondescriptionformat', XMLDB_TYPE_INTEGER,
+            '2', null, XMLDB_NOTNULL, null, '0', 'questiondescription');
+        if (!$dbman->field_exists($table, $field)) {
+            $dbman->add_field($table, $field);
+        }
+
+        // Stack savepoint reached.
+        upgrade_plugin_savepoint(true, 2023042200, 'qtype', 'stack');
+    }
+
     if ($oldversion < 2022042700) {
         // Changing type of field truescore on table qtype_stack_prt_nodes to char.
         $table = new xmldb_table('qtype_stack_prt_nodes');
@@ -898,31 +923,6 @@ function xmldb_qtype_stack_upgrade($oldversion) {
         upgrade_plugin_savepoint(true, 2022042700, 'qtype', 'stack');
     }
 
-    if ($oldversion < 2023042200) {
-
-        // Define field description to be added to qtype_stack_prt_nodes.
-        $table = new xmldb_table('qtype_stack_prt_nodes');
-        $field = new xmldb_field('description', XMLDB_TYPE_CHAR, '255', null, null, null, '', 'nodename');
-        if (!$dbman->field_exists($table, $field)) {
-            $dbman->add_field($table, $field);
-        }
-
-        // Define question description field to be added to qtype_stack_options.
-        $table = new xmldb_table('qtype_stack_options');
-        $field = new xmldb_field('questiondescription', XMLDB_TYPE_TEXT, 'medium', null, null, null, null, 'questionnote');
-        if (!$dbman->field_exists($table, $field)) {
-            $dbman->add_field($table, $field);
-        }
-        $field = new xmldb_field('questiondescriptionformat', XMLDB_TYPE_INTEGER,
-            '2', null, XMLDB_NOTNULL, null, '0', 'questiondescription');
-        if (!$dbman->field_exists($table, $field)) {
-            $dbman->add_field($table, $field);
-        }
-
-        // Stack savepoint reached.
-        upgrade_plugin_savepoint(true, 2023042200, 'qtype', 'stack');
-    }
-
     if ($oldversion < 2023042800) {
         // Define field description to be added to qtype_stack_qtests.
         $table = new xmldb_table('qtype_stack_qtests');