This problem is also in version 8.5, but if it will be repaired in version 9.0 I will be very happy.
When I connect to a FTP server and synchronize a file content, TotalCmd asks me if I want to overwrite the synchronized file.
If I remember well in version 8.0 was an opportunity to rename the uploaded file before its transfer.
It was very useful for transferring of larger files or when you have a slow connection.
Now other server users can use an incomplete file during the transfer process - for example if the file is linked from a web server the users can download an incomplete content, web server can run incomplete scripts etc.
Many thanks,
Zdenek
[9.0] FTP file content synchronization - second note
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