ClassManifest::validateItemCache always return false

[lekoala]

Module version(s) affected

5.3

Description

I was suspecting that something was slow on my machine because dev/build was taking ages

During debugging, I saw that my individuals cache entries never contain "enums", eg:

<?php //Tip_php_9d87b488d828b5dd1111c02e4421238d

return [PHP_INT_MAX, [
    'classes' => [
        'SilverStripe\\Forms\\Tip' => [
            'extends' => [],
            'interfaces' => [],
        ],
    ],
    'interfaces' => [],
    'traits' => [],
]];

therefore, validateItemCache is always false, since it checks for enums

How to reproduce

Refresh the manifest
See if the individual cache files contain enum
See that it will never return true because of that

Possible Solution

No response

Additional Context

Also see

https://github.com/silverstripe/silverstripe-framework/issues

Validations

• Check that there isn't already an issue that reports the same bug
• Double check that your reproduction steps work in a fresh installation of silverstripe/installer (with any code examples you've provided)