Tab completion always skips dotfiles, even with shopt -s dotglob #992

Description

Filename tab completion always skips hidden files (names starting with .) unless the word already being completed starts with . itself. For example, in a directory containing .bashrc, typing ls <TAB> never suggests .bashrc; you have to already type ls .<TAB> to see it.

This appears to be hardcoded in tab_complete_with_expanded_pattern (src/completions/tab_completion.rs), which is always called with should_skip_hidden = true:

let results =
    tab_complete_with_expanded_pattern(&expanded, comp_resultflags, word_under_cursor, true);

and PathPatternExpansion::wants_hidden() (src/globbing.rs) only returns true when the user-typed pattern already starts with .:

pub(crate) fn wants_hidden(&self) -> bool {
    self.rhs_pattern.starts_with('.') && !self.rhs_pattern.starts_with("./")
}

There's no config flag to change this, and it's independent of shopt -s dotglob (I couldn't find any reference to dotglob in the codebase). This is a bit surprising given the README documents dotglob as the way to "match hidden files with * and ?" for glob/extglob expansion elsewhere - it'd be natural to expect the same shopt (or an explicit flyline setting) to also affect plain tab completion.

Suggested behavior

Either:

• Have plain tab completion respect shopt -s dotglob the same way glob expansion does, or
• Add an explicit flyline setting (e.g. flyline suggestions --match-hidden-files <true|false>), similar in spirit to GNU Readline's match-hidden-files variable.

Environment

• flyline 1.7.1 (built from the AUR PKGBUILD source)
• Arch Linux, bash 5.3.15