diff --git a/editor/models/file.js b/editor/models/file.js
index <HASH>..<HASH> 100644
--- a/editor/models/file.js
+++ b/editor/models/file.js
@@ -95,6 +95,7 @@ define([
                 'path': path
             })
             .then(function(file) {
+                that.del("buffer", { silent: true });
                 return that.set(file);
             })
             .thenResolve(that);
After stat call on File model remove buffer state