HyWiki makes cursor jump randomly when entering a potential HyWiki word candidate

[m4xxed]

When I enable the following configuration and start typing anything that is CamelCase-conform, it makes the whole window jump. It appears to me that it always jumps so that the previous potential CamelCase candidate is on the first line, but I may be wrong.

Reproducer:

1. Start an emacs instance using emacs -q.

2. Run the following configuration for hyperbole/hywiki from the scratch buffer or just via command input:

(use-package hyperbole
  :custom-face
  (hywiki--word-face ((t :inherit 'link)))
  :custom
  (hsys-org-enable-smart-keys t)
  (hywiki-directory knowledge-directory)
  :config
  (hyperbole-mode 1)
  (hywiki-mode :all))

3. Go to any buffer and type something like Ca, which already triggers the jumping.

Additionally, I have found that sometimes this jumping happens even if I just edit the buffer contents. I am not sure why this happens and find it hard to pinpoint...

I made a screencast to illustrate:

2026-08-02.16-28-03.mp4

Specs:

• system: Guix System
• emacs version: GNU Emacs 31.0.90 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.51, cairo version 1.18.4)
• hyperbole version: 9.1.0, commit 080s9132mdpvb750pg34fwbr4rs717jddi96jkppzkbzlj35yrkx (I upgraded the guix package locally for testing hywiki out)

Additionally, as the screencast show, there is quite the startup delay when I load this hyperbole package. Not sure why that is though...

[m4xxed]

I just went through some of your linked articles from the README and stumbled onto this:

https://kirankp.com/blog/gnu-hyperbole-follow-up/

Seems like the user has abandoned using Hyperbole because of this very issue, which might discourage other users from considering adopting Hyperbole / Hywiki.

[rswgnu]

@m4xxed

The only thing that should make your current line become the first window line is pressing the M-RET Action key at the end of a line.

Since you are just entering a wikiword and it is happening right when the wiliword is highlighted, there must be a bug, but we have never seen this behavior or we would have fixed it.

We will try to reproduce it.

Thanks for reporting it.

[rswgnu]

@m4xxed

It would help if right after you type out a wikiword, then press C-h l, the letter el, not one. Then send the last 15 or so lines of the buffer produced.