[dolphin] [Bug 446154] New: canceling 'move files' with the stop button in the popup, leads to permanent file content loss.

[kodintent]

https://bugs.kde.org/show_bug.cgi?id=446154

            Bug ID: 446154
           Summary: canceling 'move files' with the stop button in the
                    popup, leads to permanent file content loss.
           Product: dolphin
           Version: unspecified
          Platform: Kubuntu Packages
                OS: Linux
            Status: REPORTED
          Severity: critical
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: kodintent at gmail.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY
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STEPS TO REPRODUCE
1.  select files on usb-c connected phone, with dolphin file browser
2. drag to desired folder on computer
3.  right click - accidentally select move yet again, because it is right next
to copy
4. quickly press the stop button in the popup.

OBSERVED RESULT
files already moved before stop is registered, are deleted from the phone, and
the copies in the destination all have 0kb size (about 10 files!). the contents
of the file are permanently lost. phone files are already permanently deleted,
not moved to trash.  files not yet moved remain in the phone. dolphin has done
nothing to verify the copy of each file before deleting the source, and has not
waited to verify each single file before moving to the next one, or waited
until files are verified before deleting their source. all that remains of the
file is the filename.

EXPECTED RESULT
files already moved are reproduced perfectly including the file currently being
moved when the stop button is pressed. files not yet moved remain in the phone.
because dolphin should check that the reproduced file is at least identical in
size to the one being copied from, before the original is deleted!

SOFTWARE/OS VERSIONS
Operating System: Kubuntu 20.04
KDE Plasma Version: 5.18.5
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8
Kernel Version: 5.11.0-40-generic
OS Type: 64-bit
Processors: 4 × Intel® Pentium® Silver N5030 CPU @ 1.10GHz
Memory: 7.6 GiB of RAM

ADDITIONAL INFORMATION
i immediately removed dolphin completely from my system as the first response
to this permanent loss of file content. and rightly so. the version is whatever
it would be in fully updated kubuntu as at the date of submitting this bug.
when move is used and not interrupted, it works as expected, as does copy. only
when interrupted with stop does this bug occur.
supposedly, anyone using dolphin is exposed to permanent data loss as long as
this bug exists.
my suggestion is to move the "move" option to the initial right click, not
after the drag. other software that has "move to" does this and its easy to
back out of wrong clicks, without permanent data loss.
i cannot help with further testing as im not coming back to dolphin, as long as
the move option is where it is.

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