[dolphin] [Bug 492058] New: Moving multiple files between drives could better protect against data loss

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https://bugs.kde.org/show_bug.cgi?id=492058

            Bug ID: 492058
           Summary: Moving multiple files between drives could better
                    protect against data loss
    Classification: Applications
           Product: dolphin
           Version: 24.05.2
          Platform: NixOS
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: m1vri31c at duck.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY
When moving multiple files between different drives, failure part-way through
results in neither the source or destination containing all files being
transferred, which can be equivalent to loss of data for complex directory
structures. In cases where you are moving files between different drives,
"move" could wait until the whole transfer is complete before deleting the
source files. 

This is equivalent to a copy-paste, then manually deleting the source. You
could do this manually, but when I had this issue and needed to use a backup to
restore my data, I just didn't know it would behave this way. I believe MacOS
will wait until the transfer is complete before deleting the source so that is
likely what set my expectations.

STEPS TO REPRODUCE
1. Click and drag to Move multiple files from one physical drive to another
2. Cancel transfer part-way through

OBSERVED RESULT
Transfer remains in part-complete state, with some files remaining at the
source, and some at the destination, with no complete version available
anywhere.

EXPECTED RESULT
Reverts to a state before the operation was initiated, since the transfer is
happening between different drives and won't use up any additional or
unexpected storage as files are duplicated.

SOFTWARE/OS VERSIONS
Operating System: NixOS 24.11
KDE Plasma Version: 6.1.4
KDE Frameworks Version: 6.5.0
Qt Version: 6.7.2
Kernel Version: 6.8.9 (64-bit)
Graphics Platform: Wayland

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