Omnicompletion triggers linting

Information

VIM version

VIM - Vi IMproved 9.1 (2024 Jan 02, compiled Feb 06 2024 15:30:35) Included patches: 1-80

Operating System: Arch Linux: Linux version 6.7.6-arch1-1

What went wrong

I am linting only when the buffer is saved. I am also using ale#completion#OmniFunc for omnicompletion. When using Omnicompletion by pressing <C-x><C-o>, linting is triggered and a syntax error is generated for the current line because I have not finished it.

Reproducing the bug

Configure ale as follows:

let g:ale_lint_on_text_changed = 0
let g:ale_lint_on_insert_leave = 0
let g:ale_lint_on_filetype_changed = 0
let g:ale_lint_on_enter = 0
set omnifunc=ale#completion#OmniFunc
set completeopt=menu,preview

Open python file foo.py and add content:
```
a = {}
a.
```
With the cursor at the end of line 2 in insert mode, trigger omnicompletion by pressing <C-x><C-o>.
A completion list appears. But after some seconds, the Line is marked with an error: # E: SyntaxError: invalid syntax (foo.py, line 2)

:ALEInfo

Expand

``` Current Filetype: python Available Linters: ['bandit', 'cspell', 'flake8', 'flakehell', 'jedils', 'mypy', 'prospector', 'pycln', 'pycodestyle', 'pydocstyle', 'pyflakes', 'pylama', 'pylint', 'pylsp', 'pyre', 'pyright', 'refurb', 'ruff', 'unimport', 'vulture'] Linter Aliases: 'jedils' -> ['jedi_language_server'] Enabled Linters: ['jedils'] Ignored Linters: [] Suggested Fixers: 'add_blank_lines_for_python_control_statements' - Add blank lines before control statements. 'autoflake' - Fix flake issues with autoflake. 'autoimport' - Fix import issues with autoimport. 'autopep8' - Fix PEP8 issues with autopep8. 'black' - Fix PEP8 issues with black. 'isort' - Sort Python imports with isort. 'pycln' - remove unused python import statements 'pyflyby' - Tidy Python imports with pyflyby. 'remove_trailing_lines' - Remove all blank lines at the end of a file. 'reorder-python-imports' - Sort Python imports with reorder-python-imports. 'ruff' - A python linter/fixer for Python written in Rust 'ruff_format' - Fix python files with the ruff formatter. 'trim_whitespace' - Remove all trailing whitespace characters at the end of every line. 'yapf' - Fix Python files with yapf. Linter Variables: let g:ale_python_auto_pipenv = 0 let g:ale_python_auto_poetry = 0 let g:ale_python_auto_virtualenv = 0 let g:ale_python_jedils_auto_pipenv = 0 let g:ale_python_jedils_executable = 'jedi-language-server' let g:ale_python_jedils_use_global = 0 Global Variables: let g:ale_cache_executable_check_failures = v:null let g:ale_change_sign_column_color = 0 let g:ale_command_wrapper = '' let g:ale_completion_delay = 100 let g:ale_completion_enabled = 0 let g:ale_completion_max_suggestions = 50 let g:ale_disable_lsp = 'auto' let g:ale_echo_cursor = 1 let g:ale_echo_msg_error_str = 'Error' let g:ale_echo_msg_format = '%code: %%s' let g:ale_echo_msg_info_str = 'Info' let g:ale_echo_msg_warning_str = 'Warning' let g:ale_enabled = 1 let g:ale_fix_on_save = 0 let g:ale_fixers = {} let g:ale_history_enabled = 1 let g:ale_info_default_mode = 'preview' let g:ale_history_log_output = 1 let g:ale_keep_list_window_open = 0 let g:ale_lint_delay = 200 let g:ale_lint_on_enter = 0 let g:ale_lint_on_filetype_changed = 0 let g:ale_lint_on_insert_leave = 0 let g:ale_lint_on_save = 1 let g:ale_lint_on_text_changed = 0 let g:ale_linter_aliases = {} let g:ale_linters = {'typescript': ['tsserver'], 'c': ['clang', 'clangtidy'], 'lua': ['luac'], 'sh': ['shellcheck'], 'javascript': ['jshint', 'jscs'], 'cpp': ['clang', 'clangtidy'], 'python': ['jedils']} let g:ale_linters_explicit = 1 let g:ale_linters_ignore = {} let g:ale_list_vertical = 0 let g:ale_list_window_size = 10 let g:ale_loclist_msg_format = '%code: %%s' let g:ale_max_buffer_history_size = 20 let g:ale_max_signs = -1 let g:ale_maximum_file_size = v:null let g:ale_open_list = 0 let g:ale_pattern_options = v:null let g:ale_pattern_options_enabled = v:null let g:ale_root = {} let g:ale_set_balloons = 0 let g:ale_set_highlights = 1 let g:ale_set_loclist = 1 let g:ale_set_quickfix = 0 let g:ale_set_signs = 1 let g:ale_sign_column_always = 0 let g:ale_sign_error = 'E' let g:ale_sign_info = 'I' let g:ale_sign_offset = 1000000 let g:ale_sign_style_error = 'E' let g:ale_sign_style_warning = 'W' let g:ale_sign_warning = 'W' let g:ale_sign_highlight_linenrs = 0 let g:ale_type_map = {} let g:ale_use_neovim_diagnostics_api = 0 let g:ale_use_global_executables = v:null let g:ale_virtualtext_cursor = 'all' let g:ale_warn_about_trailing_blank_lines = 1 let g:ale_warn_about_trailing_whitespace = 1 Command History: (executable check - success) jedi-language-server (started) ['/usr/bin/zsh', '-c', '''jedi-language-server'''] ```

dense-analysis / ale