Merge from 2.3: Fix for issue #2680

spyderlib/plugins/editor.py

@@ -1558,7 +1558,6 @@ def new(self, fname=None, editorstack=None, text=None):
         self._clone_file_everywhere(finfo)
         current_editor = current_es.set_current_filename(finfo.filename)
         self.register_widget_shortcuts("Editor", current_editor)
-        finfo.default = False
         if not created_from_here:
             self.save(force=True)
 

spyderlib/widgets/editor.py

@@ -185,6 +185,7 @@ def __init__(self, filename, encoding, editor, new, threadmanager,
 
     def text_changed(self):
         """Editor's text has changed"""
+        self.default = False
         self.text_changed_at.emit(self.filename,
                                   self.editor.get_position('cursor'))
 
@@ -1113,7 +1114,7 @@ def close_file(self, index=None, force=False):
                 self.set_stack_index(new_index)
         if self.get_stack_count() == 0:
             self.sig_new_file[()].emit()
-
+            return False
         return is_ok
 
     def close_all_files(self):