Issue with Facet Filter reset on re-selection

[dev-marcoC]

When I visit this page, where I can view the entire OIH corpus, I rightly have the option to select the facets I desire.

Upon selecting any facet, the page functions correctly and returns only the data associated with the chosen filter.

However, if I reselect, for example, 'Keywords' (the initial label) from the dropdown, the displayed data does not revert to what it was before the filter was applied.

The only way to reset everything is to click the 'Clear' button.

Is this behavior intentional, or is it, as we suspect, a bug?