krb5_copy_context() dumps core

[Bin Lu]

When I do the following:

   Krb5_context k5_ctx, *tmp_ctx;

   //.... (calling krb5_init_contxt(k5_ctx)

   tmp_ctx = (krb5_context*)malloc(sizeof(*tmp_ctx));
   krb5_copy_contxt(k5_ctx, tmp_ctx);

dumps core. Is this a bug?

-binlu