The success branch had two adjacent calls:
if(typeof window._applyVoiceModePref==='function') window._applyVoiceModePref(); // pre-divider (the actual fix)
_applyComposerFooterVisibilitySettings();
if(typeof window._applyVoiceModePref==='function') window._applyVoiceModePref(); // post-divider (redundant)
The post-divider one ran after _applyComposerFooterVisibilitySettings,
so it couldn't affect the divider the PR was meant to fix. It looked
like a defensive double-tap, but the function is idempotent and the
pref source (localStorage) doesn't change between the two synchronous
calls — so it was just dead code that made the diff look bigger than
the actual semantic change.
Drop it. Net PR footprint is now strictly: 'use the window-qualified
name and apply once before divider recompute in both IIFE branches.'
Re-tested: 26/26 pass on test_issue4598_composer_control_visibility
+ test_issue1488_composer_voice_buttons.
aa201b1550
