Vim: curson position outside buffer

[argoncloud]

I've been trying to use Merlin on Fedora 35 with Vim 8.2, but operations that try to move the cursor (e.g. :MerlinLocate) fail with the following error:

Error detected while processing function merlin#Locate:
line    4:
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/share/vim/vimfiles/autoload/merlin.py", line 457, in vim_locate_under_cursor
    vim_locate_at_cursor(None)
  File "/usr/share/vim/vimfiles/autoload/merlin.py", line 454, in vim_locate_at_cursor
    command_locate(path, vim.current.window.cursor)
  File "/usr/share/vim/vimfiles/autoload/merlin.py", line 295, in command_locate
    goto_file_and_point(pos_or_err)
  File "/usr/share/vim/vimfiles/autoload/merlin.py", line 283, in goto_file_and_point
    vim.current.window.cursor = (l, c)
vim.error: cursor position outside buffer

This happens both when installing Merlin from opam with ocaml.4.14.0 (and adding the suggested snippets to the ~/.vimrc) and when installing from Fedora's dnf package.

What's a good approach to investigate? Thanks!