The "sortloot revamp" patch six or seven weeks ago broke filtering
for '?' menu in display_pickinv() called by getobj(). The old code
handled 'lets' when building an array of object pointers to be
sorted. The revamp code did away with that to sort the linked list
instead, but neglected to put 'lets' handling into the subsequent
menu creation loop which is now operating on full invent rather
than the filtered subset.
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