Time Filters Should Have A More Accurate Default Text

Feature Request Summary: 

The text when no time filter is selected should say something like “not set” instead of indicating “All history - All history”.

Description/Use Cases: 

When you have a time filter that is not set on a Dashboard, it makes it look like all reports are being filtered for a time period of “All history - All history”, instead of the reality that they are using the default time ranges built into the reports. 

Business impact of limitation or missing feature:

This is misleading and not something that customers can change on their own. It would be better to not show an incorrect date range.