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Sorry for the duplicated post. I already reported this in an already merged PR[1] that seems related to this issue.

I think the issue fixed in the aforementioned PR[1]  is still happening at the redirector level, when the redirector is optimized to do the lookup of the file/directory instead of redirecting the request. For example, this configuration triggers the issue:

`cms.dfs lookup central mdhold 20m`
and this doesn't
`cms.dfs lookup distrib mdhold 20m redirect immed`

Here there is an example of what you'll see when trying to create an already existing directory with gfal-mkdir:

```
[root@27d1fc7f1d47 tpc_transfers]# gfal-mkdir https://xrootd.ultralight.org:1094/store/temp/user/ddavila/newdir/
gfal-mkdir error: 2 (No such file or directory) - HTTP 404 : File not found  with url https://xrootd.ultralight.org:1094/store/temp/user/ddavila/newdir/
```

We saw this in versions: 4.12.3-1 and 5.0.2-1
[1] https://github.com/xrootd/xrootd/pull/1164

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