Failure duplicating folder

[cyberduck]

6ec3a22 created the issue

When I duplicate a foder that contains 2 files, the folder is duplicated but the files that it constains are not. Cyberduck tells:

Impossible to create FolderXXX. 550 Can't create directory: file exists". 

Folder XXX is created however, not the files that it contains.

I have already sent a ticket about this problem for version 5.3.3, and the bug has been corrected: see ticket #9818. Installing the update 6.0.0 this morning, the error reappears!

[cyberduck]

@dkocher commented

In 718bebb.