Hi there – file hashes are calculated on upload, and then recalculated any time an attachment’s _wp_attached_file
meta value is updated.
Based on a quick test, it looks like EWWW Image Optimizer does not change the _wp_attached_file
field when it optimizes an attachment, so file hashes would not be updated automatically after optimization. If you need to make sure that all hashes have been calculated from optimized files, you can use the “Re-index Media” button (in the “Index” tab at wp-admin > Media > Manage Duplicates) – that will recalculate every attachment’s hash, even attachments that have been hashed before.
We have not done extensive testing with EWWW. If you try it and find that it plays well with MDD – or doesn’t – please let us know!
-
This reply was modified 8 months, 2 weeks ago by cornershop.