[dolphin] [Bug 433198] New: Dolphin freezes for a minute when deleting emptied folder

[Ilya Bizyaev]

https://bugs.kde.org/show_bug.cgi?id=433198

            Bug ID: 433198
           Summary: Dolphin freezes for a minute when deleting emptied
                    folder
           Product: dolphin
           Version: 20.12.2
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: bizyaev at zoho.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY
This is better explained in steps:

STEPS TO REPRODUCE
1. Open Dolphin
2. Go to a folder with many small files (e.g. 50 screenshots)
3. Select all fiels and move them e.g. to the parent folder (Ctrl-A, Ctrl-X,
Backspace, Ctrl-V)
4. Trash the folder that is now empty (Delete)

OBSERVED RESULT
Dolphin freezes for a minute. So does Latte. So does Firefox if it attempts to
send a notification.
Then they all unfreeze, and a job notification is displayed: "Dolphin",
indeterminate progress bar. Will only disappear when manually stopped, as no
operations are actually happening.

EXPECTED RESULT
The empty folder is deleted without an adventure :D


SOFTWARE/OS VERSIONS
Operating System: openSUSE Leap 15.2
KDE Plasma Version: 5.21.0
KDE Frameworks Version: 5.79.0
Qt Version: 5.15.2

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