https://bugs.kde.org/show_bug.cgi?id=377255

            Bug ID: 377255
           Summary: Git master - multiple crashes on Clip:clone
           Product: kdenlive
           Version: git-master
          Platform: Other
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: User Interface
          Assignee: j...@kdenlive.org
          Reporter: french.ebook.lo...@gmail.com
  Target Milestone: ---

Created attachment 104385
  --> https://bugs.kde.org/attachment.cgi?id=104385&action=edit
backtrace

I quite often run into a crash that involves a Clip:Clone in the backtrace, and
causes a double free error inside mlt's XML module.

The backtrace is similar to the one obtained in
https://bugs.kde.org/show_bug.cgi?id=366666

There seems to be several ways to trigger this bug. Loading a project (even a
new one) is one way, but the crash happen only ~20% of the time (a double free
doesn't necessarily trigger a crash, it would be worth it to look at memory
error)

An other way, but still inconsistent (it crashes ~30% of the time for me), is
to create a new project, add 10+ bin clips, select them all, and add them to
the timeline. For me, the "silhouette" of the clips appears, but when releasing
the mouse, it crashes. Note that if it doesn't crash the first time, undoing
until reacing the empty project and then redoing might help triggering the
crash.

I'm attaching a backtrace obtained while inserting multiple clips, undoing
twice and redoing twice.

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