Comment 2 for bug 853832

StacktraceTop:
 __libc_message (do_abort=2, fmt=0x7fa507bcf0d8 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:189
 malloc_printerr (action=3, str=0x7fa507bcf210 "double free or corruption (fasttop)", ptr=<optimized out>) at malloc.c:6283
 _int_realloc (av=0x7fa4ec000020, oldp=0x7fa4ec0009c0, oldsize=32, nb=<optimized out>) at malloc.c:5341
 __GI___libc_realloc (oldmem=0x7fa4ec0009d0, bytes=32) at malloc.c:3821
 g_realloc (mem=<optimized out>, n_bytes=32) at /build/buildd/glib2.0-2.29.92/./glib/gmem.c:242