Comment 2 for bug 1043068

StacktraceTop:
 fast_validate (str=<optimized out>) at /build/buildd/glib2.0-2.33.10/./glib/gutf8.c:1461
 g_utf8_validate (str=str@entry=0x41 <Address 0x41 out of bounds>, max_len=max_len@entry=-1, end=end@entry=0x0) at /build/buildd/glib2.0-2.33.10/./glib/gutf8.c:1629
 g_variant_new_string (string=0x41 <Address 0x41 out of bounds>) at /build/buildd/glib2.0-2.33.10/./glib/gvariant.c:1270
 g_variant_valist_new_nnp (str=0x7fff07943c68, ptr=0x41) at /build/buildd/glib2.0-2.33.10/./glib/gvariant.c:4119
 g_variant_valist_new_leaf (app=0x7fff07943c98, str=0x7fff07943c68) at /build/buildd/glib2.0-2.33.10/./glib/gvariant.c:4311