fix(#3366): api.git.reload() not functional when filesystem_watchers.enable = false

[ytret]

Fixes #3366

Current implementation of Explorer:reload_git() uses the old git.config table:

function Explorer:reload_git()
  if not git.config.git or not git.config.git.enable or event_running then
    return
  end
  -- <...>
end

Its init was removed in 3d385d3 (commit 4146915 within the PR), and it's been empty since then, that's why the if branch is always taken and Explorer:reload_git() returns prematurely.

Fix this by using the config.g.git.enable value. No need to check if config.g.git is defined because it is always set here.

• AI: GPT 6.1 Sol high - the fix itself
• Issue, PR, the commit texts are mine
• Testing performed: make all, the reproduction steps in Tracked file still shown as untracked after git.reload() #3366

[ytret]

Sorry had a trouble with the GitHub interface

[alex-courtis]

Many thanks for the excellent report/reproducer and contribution.

Good catch identifying that git.config is the incorrect table. I'd be most grateful if you could remove it so that we don't have any future problems.