fix: Fixes a regression where --help couldn't be overridden

Closes #1112

src/app/parser.rs

@@ -75,6 +75,7 @@ impl<'a, 'b> Parser<'a, 'b>
     pub fn with_name(n: String) -> Self {
         Parser {
             meta: AppMeta::with_name(n),
+            g_settings: AppFlags::zeroed(),
             ..Default::default()
         }
     }
@@ -1811,7 +1812,7 @@ impl<'a, 'b> Parser<'a, 'b>
         }
         Ok(())
     }
-    
+
     pub fn add_env(&mut self, matcher: &mut ArgMatcher<'a>) -> ClapResult<()> {
         macro_rules! add_val {
             ($_self:ident, $a:ident, $m:ident) => {

src/app/settings.rs

@@ -67,6 +67,7 @@ impl Default for AppFlags {
 #[allow(deprecated)]
 impl AppFlags {
     pub fn new() -> Self { AppFlags::default() }
+    pub fn zeroed() -> Self { AppFlags(Flags::empty()) }
 
     impl_settings! { AppSettings,
         ArgRequiredElseHelp => Flags::A_REQUIRED_ELSE_HELP,