MDL-74032 core_cache: Coding error before upgrade with versioned cache

In certain cases where it doesn't already redirect to run the upgrade,
users could see an exception 'Unexpectedly found non-versioned cache
entry'. This change ensures the upgrade happens instead.

cache/classes/loaders.php

@@ -510,11 +510,16 @@ protected function get_implementation($key, int $requiredversion, int $strictnes
             try {
                 $validversion = self::check_version($result, $requiredversion);
             } catch (\coding_exception $e) {
-                // If we get an exception because there is incorrect data in the cache (not
+                // In certain circumstances this could happen before users are taken to the upgrade
+                // screen when upgrading from an earlier Moodle version that didn't use a versioned
+                // cache for this item, so redirect instead of showing error if that's the case.
+                redirect_if_major_upgrade_required();
+
+                // If we still get an exception because there is incorrect data in the cache (not
                 // versioned when it ought to be), delete it so this exception goes away next time.
                 // The exception should only happen if there is a code bug (which is why we still
-                // throw it) but there are unusual scenarios where it might happen and that would
-                // be annoying if it doesn't fix itself.
+                // throw it) but there are unusual scenarios in development where it might happen
+                // and that would be annoying if it doesn't fix itself.
                 $this->store->delete($parsedkey);
                 throw $e;
             }

lib/setuplib.php

@@ -1423,7 +1423,7 @@ function disable_output_buffering() {
  */
 function is_major_upgrade_required() {
     global $CFG;
-    $lastmajordbchanges = 2021101900.01;
+    $lastmajordbchanges = 2022022200.00;
 
     $required = empty($CFG->version);
     $required = $required || (float)$CFG->version < $lastmajordbchanges;