In \Drupal\media_library\Form\MediaLibraryUploadForm::buildForm, a #process callback is used to validate the cardinality of an upload. This was done as, in the developer's testing, #element_validate does not function properly when the element is submitted using AJAX.
This is functional for this use case, but we should figure out why #element_validate didn't work and fix the problem in core or the media_library module.
Move the ::validateUploadElement process callback into #element_validate .
Figure out the work required to do this, open more issues or change this issue's component if necessary.
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Closed: outdated
8.8 ⚰️
Last updated
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
As mentioned in the previous comment, there still is a todo in FileUploadForm.php.
Yes, there is still work to do but this issue is listed on the issue tracking @todos for closed issues, 📌 [META] Fix @todo items referencing closed issues Active . Therefor, this can remain closed. The work will happen when someone decides to work on fixing it.
I am restoring the status set in #6