If current content has links in richtext fields, (duplicated) rows are added to ezurl_object_link table every time a draft is saved or published.

So you'll at least get two rows per link (one when draft is created and one on publish) when publishing

How to reproduce:

• Start editing a some content that has richtext
• In richt text, add link to https://ibexa.co
• Click save draft
• run sql select * from ezurl; select * from ezurl_object_link;
• Count number of rows returned
• Click save again
• Rerun query again
• Observe that row count has increased and that you got a new duplicated row