'Notice: Undefined index: groups' while executing `bin/magento app:config:import`

Hi guys

I haven't tested this on a clean Magento project, but I think you will probably be able to reproduce it.

This has been seen using Magento EE 2.2.5 on a Magento Cloud environment. We use version 1.0.9 of the DPD module.

Anyway, here's what I've noticed:

Our client has done some configuration of the DPD module in the backend of Magento (and probably uploaded a csv file)
On the Magento Cloud, it is advised to regularly run vendor/bin/m2-ece-scd-dump to dump the configuration to the app/etc/config.php file (since you guys probably won't have access to the Magento Cloud, you can most likely reproduce this by executing bin/magento app:config:dump)

After dumping the config, we have this section in our app/etc/config.php file:

...

'system' => [
    'websites' => [
        'base' => [
            'carriers' => [
                'dpdpredict' => [
                    'condition_name' => 'package_value',
                    'import' => '1529500591,correct_tablerates.csv,text/csv,/tmp/abcdefghijklmn/phpuMlX6V,0,219'
                ],
                'dpdsaturday' => [
                    'condition_name' => 'package_weight',
                    'import' => '1529500591,,,,4,0'
                ],
                'dpdpickup' => [
                    'condition_name' => 'package_value',
                    'import' => '1529500591,,,,4,0'
                ],
                'tablerate' => [
                    'import' => '1529500591,,,,4,0'
                ],
                'dhl' => [
                    'doc_methods' => NULL
                ]
            ],
        ]
    ]
]

...

Then, when we try to import this config back in Magento on another (or the same) environment using bin/magento app:config:import, we get this output:

$ bin/magento app:config:import
Processing configurations data from configuration file...
Import failed: Notice: Undefined index: groups in vendor/dpdbenelux/magento2-shipping/Model/ResourceModel/Tablerate.php on line 264

Extra remark: I don't think it's a good idea to move these "import" configurations in between environments, since they look like file uploads, so that wouldn't make any sense to move those in between environments. Maybe those "import" configurations should be marked as "system-specific" ? More info: https://devdocs.magento.com/guides/v2.2/extension-dev-guide/configuration/sensitive-and-environment-settings.html (I think this can only be done for Magento 2.2 and higher)

This is probably a pretty complex issue, so I hope I've provided enough info for you guys to figure out what is wrong or what can be improved.

Thanks!

DPDBeNeLux / magento2-shipping

'Notice: Undefined index: groups' while executing `bin/magento app:config:import` #22