[dolphin] [Bug 458562] New: File date is changed to current date when copied to mounted SMB network share with Dolphin.

[NeilC]

https://bugs.kde.org/show_bug.cgi?id=458562

            Bug ID: 458562
           Summary: File date is changed to current date when copied to
                    mounted SMB network share with Dolphin.
           Product: dolphin
           Version: 20.12.2
          Platform: Ubuntu Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: ncrock at hotmail.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

I'm using KDE 5.20.5 on MX-21.2. I have mounted SMB shares with fstab on Linux
startup. If I copy files to the mounted share with Dolphin the file date is
changed to the current date. If I copy the file with Dolphin directly to the
share (not using the mount, but the smb:// folder in Dolphin) the original is
retained.
FreeFileSync preserves the original file date when the files are copied to the
same SMB mounted share.

SUMMARY
***
File date is changed to present date when copied to a mounted SMB network share
(/mnt/share) using Dolphin. Original file date is retained when the file is
copied to the same network share using SMB:// folder in Dolphin. Original file
date is retained when the file is copied to the same mounted SMB network share
with FreeFileSync. 
***
STEPS TO REPRODUCE
1. Mount network shares with fstab on Linux boot.
2. fstab: //192.xxx.x.xxx/share /mnt/share cifs
credentials=/home/user/.credentials,vers=1.0,uid=1001,gid=1001,file_mode=0777,dir_mode=0777
0 0. 
3. Open Dolphin in split view.
4. Click on Dolphin window which contains source file.
5. Click on SMB network share mount in other Dolphin window. Share shows as
/mnt/share.
6. Drag file from source window to SMB mounted share.

OBSERVED RESULT
File date is changed from original date to date that file was copied. 

EXPECTED RESULT
Original file date should be retained.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE 5.20.5 on Linux MX-21.2
(available in About System)
KDE Plasma Version: 5.20.5
KDE Frameworks Version: 5.78.0
Qt Version: 5.12.2

ADDITIONAL INFORMATION
Kernel version: 5.10.0.17-amd64
I need to mount this share as the NAS only supports SMB vers 1.0. If I don't
mount the NAS share with the CIFS vers=1.0 option the share doesn't show up in
Dolphin.

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