Hi julcnx, thanks for your message!

The edit was heavily discussed here https://community.openstreetmap.org/t/automated-edit-proposal-convert-non-standard-dashes-to-standard-dashes/110206 and the wiki page for that is available here and in my profile page, with all the details about the edit: https://wiki.openstreetmap.org/wiki/Automated_edits/Standard_Dashes

Please let me know if you need any other detail!

Best,
Matheus