Should you be able to reuse an old slug from another record's slug history?

[norman]

See #663.

[marckohlbrugge]

Was surprised to find out Friendly ID's behavior in this regard.

Some context: I run a site where users can post projects. Each project has a URL like example.com/projects/foobar where foobar is a slug generated by Friendly ID. We use the history option so when projects are renamed (e.g. to turbo-donkey) the old links continue to work and redirect to the new page instead.

Here's the problem: If someone adds a different project with a slug that was previously used (e.g. foobar), then that project won't have a working URL. As /projects/foobar still redirects to turbo-donkey.

Even if the most recently created slug would take precedence, you'd still end up in a situation where old links to /projects/foobar, which used to redirect to point to one project, now start pointing to a different project.

The solution is, as the title of this issue suggests, to prevent reusing old slugs.

Any pointers on how to approach this?

[stale]

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