Orderless breaks ESS completion in region

[krvpal]

Hi, thanks for this great package. I've completely switched to vertico + consult + orderless + marginalia workflow from ivy + counsel in Doom Emacs due to the promise of closer integration with native Emacs functionalities.

It has been working great so far except when I need completions in ESS buffers. I use ess-mode for R programming and it is fairly common to have text as follows (note the symbol $ at the end):

variable_name$

After which ESS related completion-at-point functions are used.

When not using orderless I get full completion candidates to select something like:

variable_name$col_name

But when using orderless it always returns No matches. I believe this has to do with the character $ right before the cursor when completion at point functions are called.

It took me some time to realize orderless was causing this issue and I've tried all the Component matching styles individually to no avail. Currently, I've advised ESS completion functions to use Ivy instead just for these situations. I'd really love to just use vertico + consult + orderless for ESS completions, please help.

[Omar Antolín Camarena]

I believe this problem is likely to be solved by setting completion-styles to '(orderless basic) as now recommended in the documentation. If not, please reopen.