Workspace prompts to save even if unmodified

[humbads]

If I save my workspace, and then immediately try to close it, Textpad asks "Do you want to save changes to the workspace?". Textpad apparently cannot keep track of changes to the workspace, so it does not know when a workspace has been modified and needs to be saved. For example, when you modify a file, a '*' appears to indicate it has been modified. A similar feature should be implemented for the workspaces, so that it does not prompt to save when the workspace is unmodified.