<p></p>
<p><a class="user-mention" data-hovercard-type="user" data-hovercard-url="/users/zerebubuth/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/zerebubuth">@zerebubuth</a> thanks for your response, I will try that since there is nothing better. It is probably the same problem as explained by Simon <a href="https://help.openstreetmap.org/questions/52248/duplicate-key-value-violates-unique-constraint-users_display_name_idx" rel="nofollow">here</a>.</p>
<p>I also found the related discussion at <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="567052765" data-permission-text="Title is private" data-url="https://github.com/openstreetmap/openstreetmap-website/issues/2543" data-hovercard-type="issue" data-hovercard-url="/openstreetmap/openstreetmap-website/issues/2543/hovercard" href="https://github.com/openstreetmap/openstreetmap-website/issues/2543">#2543</a> which explains why there is no little/no support on seeding the API DB using data exports (as it is not required for the official workflows including testing). Even if that is the case, the documentation should be more explicit about this so that known issues can be made clear to new users.</p>

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