Making an object advance search with empty fields after resetting field values with 'Reset' button shows results from previous search.
This issue can be reproduced on demo Collective Access site by:
1. Make a search by selecting 'Archival' for field 'Type'. Results appear.
2.Click 'Reset' button. Selection 'Archival' is cleared.
3. Make a search with empty values for all fields. Results appear from the previous search, which in this case is objects of Archival type. And field Type gets 'Archival' as a selected value.
'Remember last search or browse' option in Preferences is set to 'Clear previous search terms when performing a new search or browse'