Follow-up to: ✨ Move simplified Profile module into core Closed: won't fix
Add a property/flag to ProfileType that indicates whether users may create multiple instances of the profile type.
Quoting @fago from #1668292-84: Move simplified Profile module into core → :
This could be an optional validation constraint, or an additional entity reference for optional attaching the profile to another entity (configured per bundle). This reference could be used for making sure there is just 1 profile per attached entity + it can be the base for adding in profile2 display extra-field integration or user-register extra-form integration.
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
On a decision about if profile will be added to core
Was determined to keep profile in contrib in ✨ Move simplified Profile module into core Closed: won't fix