In a specific (but common) use case my Job is processed twice by the JobCheckoutManager and sent twice to the Translator service.
I have got ONLY 1 Translator provider (XTM in my use case, set up their official
Tmgmt XTM module →
connector).
In settings (/admin/tmgmt/settings) the "Allow quick checkout" is checked;
In a Content translation UI I check 1 (or more) language and then click on the "Request Translation" to trigger the translation request process (with quick checkout);
Every language job will be sent twice to the Translation Provider, though created only one Job for its instance (@see the attached screenshot);
From some debugging I can see that this is happening (with the above setup/conditions) because in the JobCheckoutManager->checkoutAndRedirect the same Job will be managed and submitted for translation both in the JobCheckoutManager->checkoutMultiple method and, throughout the batch_set($batch) in the batchSubmit static method ...
Should this be avoided with a functional logic that impeded duplicated Jobs being sent to the Translator provider?
Needs work
1.0
Core
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
Unfortunately while the patch still solves it (now converted to MR), the module has moved on and the tests don't work like that any more it seems. No messages are no returned (rather than 4, or 2 with the patch).