I can't reproduce that behavior on my end. I see different behavior though. My helm window is titled crm-complete, and the buffer is called *helm-mode-crm-complete*

This seems to be the helm core package I am using.

helm-core-20170112.917

John

-----------------------------------
Professor John Kitchin 
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803

On Tue, Mar 14, 2017 at 12:24 PM, <aaermolov@gmail.com> wrote:
Hi John,

no, these do not seem to fix anything. :(

Namely, the following is still happens:

1) I'm pressing C-c C-q then TAB to select freeform input
2) then there is "org-set-tags" above candidates list and buffer title
   is "*helm-mode-org-set-tags*"
3) after any input candidates list looks like "[?]<helm query chars>"
   (initial candidates disappeared)

regards,
Alex

John Kitchin <jkitchin@andrew.cmu.edu> writes:

> have you tried these settings:
>
> (setq helm-mode-fuzzy-match t
>       helm-completion-in-region-fuzzy-match t)
>
> According to https://github.com/emacs-helm/helm/wiki/Fuzzy-matching, the
> make fuzzy matching work everywhere.
>
> It seems to work ok for me.
>
> aaermolov@gmail.com writes:
>
>> Hi,
>>
>> I've spotted a problem with completing Org tags with Helm. While Helm is
>> not at least about [fuzzy] completion, when I try to input any
>> completion subsequence, all candidates are gone and variants are
>> shrinked to whatever will be typed.
>>
>> Is there any widely known mistake, that I've stepped into with this
>> case? Can anyone point me to some comprehensible direction?
>>
>> regards,
>> Alex
>
>
> --
> Professor John Kitchin
> Doherty Hall A207F
> Department of Chemical Engineering
> Carnegie Mellon University
> Pittsburgh, PA 15213
> 412-268-7803
> @johnkitchin
> http://kitchingroup.cheme.cmu.edu