<div style="display: flex; flex-wrap: wrap; white-space: pre-wrap; align-items: center; "><img height="20" width="20" style="border-radius:50%; margin-right: 4px;" decoding="async" src="https://avatars.githubusercontent.com/u/16009897?s=20&v=4" /><strong>k-yle</strong> left a comment <a href="https://github.com/openstreetmap/openstreetmap-website/pull/5973#issuecomment-2844691797">(openstreetmap/openstreetmap-website#5973)</a></div>
<blockquote>
<p dir="auto">Now for the upload, you might have multiple create/modify/delete blocks in random order, including repeating blocks for the same action. How would this work with your proposed format?</p>
</blockquote>
<p dir="auto">If I understand you correctly, you're referring to the case where someone uploads an XML file like this:</p>
<div class="highlight highlight-text-xml" dir="auto"><pre class="notranslate"><<span class="pl-ent">osmChange</span>>
  <<span class="pl-ent">create</span>> <<span class="pl-ent">node</span> <span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>1<span class="pl-pds">"</span></span> … />  </<span class="pl-ent">create</span>>
  <<span class="pl-ent">update</span>> <<span class="pl-ent">node</span> <span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>2<span class="pl-pds">"</span></span> … />  </<span class="pl-ent">update</span>>
  <<span class="pl-ent">create</span>> <<span class="pl-ent">way</span> <span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>3<span class="pl-pds">"</span></span> … />  </<span class="pl-ent">create</span>> <span class="pl-c"><span class="pl-c"><!--</span> create again <span class="pl-c">--></span></span>
  <<span class="pl-ent">create</span>> <<span class="pl-ent">node</span> <span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>4<span class="pl-pds">"</span></span> … />  </<span class="pl-ent">create</span>> <span class="pl-c"><span class="pl-c"><!--</span> and again <span class="pl-c">--></span></span>
</<span class="pl-ent">osmChange</span>></pre></div>
<p dir="auto">Is there a reason why uploaders can't just store 3 arrays (<code class="notranslate">create</code>, <code class="notranslate">update</code>, <code class="notranslate">delete</code>) and append each element to the correct array before uploading it?</p>

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