<p>We have<br>
-one app misbehaving. solution: tell them to stop and document why auto retrying is a bad idea</p>
<ul>
<li>a general issue with horizontally chunked uploads, these should be discouraged and replaced by referentially complete chunking ( note I do this wrong too just as likely every other editor dev) and best be completly avoided</li>
<li>no method with which an app can determine if an upload succeeded or not, this is needed in any case as simply suggesting retrying for an hour (and then what?) is not going to cut it. with vertical chunking retaining the place holder mapping isn't really needed.</li>
</ul>

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