<p>This may as well be a bug in StreetComplete or osmapi, I am currently investigating. Maybe you immediately know what is wrong or can help me find the bug.</p>
<p>Since this morning, I am getting error reports from users of StreetComplete about failing upload. The error returned by the OSM API  <code>Bad Request (400) - Version may not be negative</code>.</p>
<p>The newest version of the app is out for some weeks already, but I am only getting error reports about this now. So, <em>something</em> must have changed very recently that leads to the app making a bad request.</p>
<p>I can't find where in the OSM API a string like <em>"Version may not be negative"</em> is returned. Could you point me at it? Also, the version mentioned in that error message is the version of the element uploaded, right?</p>

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