[Xfce-bugs] [Bug 16467] New: Partially written files sometimes prematurely have thumbnails generated

[bugzilla-daemon at xfce.org]

https://bugzilla.xfce.org/show_bug.cgi?id=16467

            Bug ID: 16467
           Summary: Partially written files sometimes prematurely have
                    thumbnails generated
    Classification: Xfce Core
           Product: Thunar
           Version: 1.8.12
          Hardware: PC (x86_64)
                OS: All
            Status: NEW
          Severity: normal
          Priority: Medium
         Component: General
          Assignee: xfce-bugs at xfce.org
          Reporter: yumekuineru at hotmail.com
  Target Milestone: 1.8.13

Created attachment 9484
  --> https://bugzilla.xfce.org/attachment.cgi?id=9484&action=edit
Script for generating 100 images with random noise (to generate thumbnails for)

Sometimes, particularly when many files are saved quickly, having Thunar open
in the same directory causes some thumbnails to be generated before the file is
finished writing. 
This results in the thumbnail having a section of grey rows at the bottom. 
Refreshing or navigating away and back does not cause the thumbnails to be
regenerated (for the changed, completely written file).

The issue is somewhat reproducible with the attached script, while having
Thunar navigated to the same directory.

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