You can clear default task as described below:
A default task will automatically record the various version control operations you perform using the Integration. You should set a task as default task as described below:
1. Switch to the Browse Task view.
2. Select the desired connection and, if necessary, expand to view all tasks.
3. Select NONE.
4. Right-click in the view to bring up the context menu.
5. Click the menu Set As Default.
The default task will be cleared for the selected connection.