don't call disambiguation check when doing completion

src/info.rs

@@ -212,7 +212,15 @@ impl<T> OptionParser<T> {
 
         // this only handles disambiguation failure in construct
         if let Some(msg) = err {
-            return Err(msg.render(&state, &self.inner.meta()));
+            #[cfg(feature = "autocomplete")]
+            let check_disambiguation = state.comp_ref().is_none();
+
+            #[cfg(not(feature = "autocomplete"))]
+            let check_disambiguation = false;
+
+            if check_disambiguation {
+                return Err(msg.render(&state, &self.inner.meta()));
+            }
         }
 
         self.run_subparser(&mut state)

tests/completion.rs

@@ -1113,10 +1113,12 @@ fn ambiguity_no_resolve() {
     let a1 = short('a').argument::<usize>("AAAAAA");
     let parser = construct!([a0, a1]).to_options();
 
-    parser
+    let r = parser
         .run_inner(Args::from(&["-aaa"]).set_comp(0))
         .unwrap_err()
         .unwrap_stdout();
+
+    assert_eq!(r, "-aaa\n");
 }
 
 #[test]