Preserve Ad hoc (unsaved) filters while the Grid view is still open

Users report frustration that in the TFUI, on a main FLV Grid, when they create an adhoc filter and apply it without specifying a name for the filter, it applies to the grid (showing "Unsaved filter" being applied). If user clicks on one of the grid results to look at an object in more detail, and then comes back to the grid again, the "Unsaved filter" is lost, and user has to re-create it again to see the desired grid results again.

This is annoying for users when the adhoc filter is lost. They have to again click on Advanced filter > Add New, and create the conditions again to see the filtered results.

The online documentation actually says this about ad hoc filters:

"Close the Grid View.

The ad hoc filter is deleted."

But this is not true, because the user did NOT close the Grid view, they simply switched to another tab and then switched back to the Grid view, yet the ad hoc filter was still deleted.

From the user: "Basically if you create your own filter without saving it, as soon as you either click into a single object or any new object, that filtered data disappears and you have to re-do your filter every time. It does not happen if you save the filter, but considering how often people filter data every day and in different ways, we can't expect that someone will save variation of every filter they need."

They are requesting that the ad hoc filter be preserved until they actually close the Grid. Otherwise, documentation should be updated to indicate closing OR SWITCHING AWAY from the grid view will delete the ad hoc filter.