[Reportbug-maint] Bug#758619: Reportbug closes with mutex locking issue

[Prema]

Package: Reportbug
Version: 6.5.1

Reportbug crashes with the
 "Attempt to unlock mutex that was not locked
Aborted"
error.

The backtrace for the same is

 gdb --args python /usr/bin/reportbug -b --no-check-available libpulse0

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Reading symbols from python...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/python /usr/bin/reportbug -b
--no-check-available libpulse0
[Thread debugging using libthread_db enabled]
Using host libthread_db library
"/lib/i386-linux-gnu/i686/cmov/libthread_db.so.1".
Gtk-Message: Failed to load module "canberra-gtk-module"
[New Thread 0xadb09b40 (LWP 25300)]
Attempt to unlock mutex that was not locked

Program received signal SIGABRT, Aborted.
0xb7fde424 in __kernel_vsyscall ()
(gdb) thread apply all bt

Thread 2 (Thread 0xadb09b40 (LWP 25300)):
#0  0xb7fde424 in __kernel_vsyscall ()
#1  0xb7e6350b in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0xb6fc70b0 in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb6fb8054 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb6fb8479 in g_main_loop_run () from
/lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb63d5955 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb6fdf3da in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb7fa2efb in start_thread (arg=0xadb09b40) at pthread_create.c:309
#8  0xb7e6dd4e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129

Thread 1 (Thread 0xb7d82700 (LWP 25294)):
#0  0xb7fde424 in __kernel_vsyscall ()
#1  0xb7db2267 in __GI_raise (sig=sig at entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
#2  0xb7db3923 in __GI_abort () at abort.c:89
#3  0xb6ffdb20 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb6665f74 in ?? () from /usr/lib/i386-linux-gnu/libgdk-x11-2.0.so.0
#5  0xb67b2bc5 in gtk_dialog_run () from
/usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0
#6  0xb6cb9283 in ?? () from
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/_gtk.so
#7  0x08107c0c in PyEval_EvalFrameEx ()
#8  0x081078db in PyEval_EvalFrameEx ()
#9  0x081078db in PyEval_EvalFrameEx ()
#10 0x08105f4d in PyEval_EvalCodeEx ()
#11 0x0813a88c in ?? ()
#12 0x08131578 in PyRun_FileExFlags ()
#13 0x08130725 in PyRun_SimpleFileExFlags ()
#14 0x080daaa7 in Py_Main ()
#15 0x080da50b in main ()
(gdb) quit

Is there any patch available for this issue.

-- 
Regards.,
Prema S
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