[openstreetmap-website] Deduplicate object metadata code (refactoring) (#611)

[Tom Hughes]

> +    user_id = changeset_cache[osm.changeset_id]
> +
> +    if user_display_name_cache.key?(user_id)
> +      # use the cache if available
> +    elsif osm.changeset.user.data_public?
> +      user_display_name_cache[user_id] = osm.changeset.user.display_name
> +    else
> +      user_display_name_cache[user_id] = nil
> +    end
> +
> +    unless user_display_name_cache[user_id].nil?
> +      el1['user'] = user_display_name_cache[user_id]
> +      el1['uid'] = user_id.to_s
> +    end
> +
> +    end

Indentation is screwed up here - thought you actually had too many `end` lines for a minute but it's actually just wrong indented.

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Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/openstreetmap-website/pull/611/files#r8072735
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