Re: query-replace in isearch (was Re: should search ring contain duplicates?)

[Richard Stallman]

    >                                                         Using
    > add-to-history will treat this new element just like other new
    > elements on the same history list.  That seems right to me.  Do you
    > think it is wrong in this case?

    It is wrong if history-delete-duplicates is nil; then it unconditionally
    adds an element even if it is equal to the head of the history.

If history-delete-duplicates is nil, why is that behavior wrong?
Isn't it normal, in that case, to add the new element unconditionally?