ctxt: don't use insert for add_function
ctxt: don't use insert for add_function

dinfuehr/dora,riginding/dora,dinfuehr/dora,dinfuehr/dora,riginding/dora,riginding/dora,dinfuehr/dora,riginding/dora,riginding/dora,dinfuehr/dora,riginding/dora,dinfuehr/dora,riginding/dora