[dolphin] [Bug 426617] Dolphin 100% CPU core usage [Folders panel]

[Tonurics]

https://bugs.kde.org/show_bug.cgi?id=426617

--- Comment #6 from Tonurics <tonurics at gmail.com> ---
Created attachment 131816
  --> https://bugs.kde.org/attachment.cgi?id=131816&action=edit
gdb

Here you go.

Steps to reproduce on GUI:
1) Navigate to /tmp by typing the path into the address bar.
2) Double Click on tmp location in Folder panel to collapse it. [No noticeable
flashing.]
3) Double Click on tmp location in Folder panel to expanding it. [Arrows are
now flashing.]

Also, I may have discovered something while creating the dump: Unless I
navigate using the Folder panel, the flashing arrows aren't visible until the
Folder panel tree is expanded to a second level.

For example:

1) Start Dolphin [no flashing]
2) Double click on ~/Downloads from Folder panel [flashing]
3) Type in ~/Documents/foo [flashing]

1) Start Dolphin [no flashing]
2) Type in ~/Downloads/foo [no flashing]
3) Type in ~/Documents/bar [flashing]

1) Start Dolphin [no flashing]
2) Type in ~/Downloads [no flashing]
3) Type in ~/Documents/bar [no flashing]
3) Type in ~/Downloads/foo [flashing]

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