turn off force complete when editor content changes

src/components/views/rooms/Autocomplete.js

@@ -75,10 +75,10 @@ export default class Autocomplete extends React.Component {
             } else {
                 selectionOffset++; // selectionOffset is 1-indexed!
             }
-        } else {
+        }
+
         // If no completions were returned, we should turn off force completion.
         forceComplete = false;
-        }
 
         let hide = this.state.hide;
         // These are lists of booleans that indicate whether whether the corresponding provider had a matching pattern