diff --git a/app/assets/javascripts/discourse/app/models/composer.js b/app/assets/javascripts/discourse/app/models/composer.js
index 56e4d1ac806..211e4ca93dd 100644
--- a/app/assets/javascripts/discourse/app/models/composer.js
+++ b/app/assets/javascripts/discourse/app/models/composer.js
@@ -785,11 +785,14 @@ const Composer = RestModel.extend({
       });
     }
 
+    this.set("originalTitle", "");
+
     if (opts.title) {
       this.set("title", opts.title);
     }
 
     this.set("originalText", opts.draft ? "" : this.reply);
+
     if (this.editingFirstPost) {
       this.set("originalTitle", this.title);
     }