problem with original filename/percent encoded urls

I’ve synced the uploads directory to S3 and most images are working fine. However some files that were percent encoded on upload are not working. Filename image[copy].png was originally uploaded to WP as image%5Bcopy%5D.png. S3 forces us encode the percent symbol too, so the filename on S3 is image%255Bcopy%255D.png

Is there a way to fix this?

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