TAG_FALLBACK
tag_put(tag, TAG_FALLBACK, n);
tag_put(NULL, TAG_FALLBACK, mdoc->last);
tag_put(tag, TAG_FALLBACK, n);
else if (entry->prio > prio || prio == TAG_FALLBACK) {
if (prio == TAG_FALLBACK) {
assert(prio <= TAG_FALLBACK);