> Could we prevent the "0/0" count from showing when searching for an
> incomplete regexp?  For example, typing characters after C-M-s [
> results in the isearch prompt shifting when the "0/0" count is
> displayed lazily after each keypress.
>
> Also, the count is shown in the prompt even for "M-e".  For example,
> C-s buf M-e shows "1/2 I-search:" as the (static) prompt, which is not
> necessary (and it may be outdated as soon as the user changes the text
> in the minibuffer).

I agree on both accounts, and fixed this in a new patch that also
includes two new customizable variables lazy-count-prefix-format and
lazy-count-suffix-format: