"Reset all" in Agreement Line search does not correctly reset Agreement or Order filters

Overview:
The "Reset all" is intended to clear the filters in the Agreement line search.
Currently while the search criteria are reset the PO line and Agreement filters are left in a state in the UI where the previous PO Line/Agreement information is displayed, and cannot be replaced (even though the details are not being used in the current filter)

Steps to Reproduce:

1. Go to Agreement line search
2. Set an agreement or PO Line filter
3. Click "Reset all"

Expected Results:
All filters reset

Actual Results:
The search is reset but the agreement / PO Line information still displays in the filter and the 'Select agreement' / 'Select PO line' button does not become active so there is no way of setting a new filter on these criteria

Screenshot shows how the values are left displaying in the filters (even though they are no longer being used for the search results) and how the "Select" buttons are inactive still