ALEInfo missing fixers when using alias

[Spixmaster]

Information

VIM - Vi IMproved 9.0

Operating System: Arch Linux

What went wrong

This is in my .vimrc.

let g:ale_linter_aliases = {"PKGBUILD": "sh"}

When opening a PKGBUILD file the command ALEInfo shows the following.

 Current Filetype: PKGBUILD
Available Linters: ['bashate', 'cspell', 'language_server', 'shell', 'shellcheck']
  Enabled Linters: ['shell', 'shellcheck']
  Ignored Linters: []
 Suggested Fixers:
  'remove_trailing_lines' - Remove all blank lines at the end of a file.
  'trim_whitespace' - Remove all trailing whitespace characters at the end of every line.
 Linter Variables:
 Global Variables:

The fixers from type "sh" are missing.