Assert !src->setjmp in aom_internal_error_copy()

Change-Id: I8fa4245d05b2a240e346cfd47cdc72a0b9b0e616
diff --git a/aom/src/aom_codec.c b/aom/src/aom_codec.c
index 512fd28..316cc6f 100644
--- a/aom/src/aom_codec.c
+++ b/aom/src/aom_codec.c
@@ -170,6 +170,7 @@
 void aom_internal_error_copy(struct aom_internal_error_info *info,
                              const struct aom_internal_error_info *src) {
   assert(info != src);
+  assert(!src->setjmp);
 
   if (!src->has_detail) {
     aom_internal_error(info, src->error_code, NULL);