[BUGFIX] "queryGroup" doesn't respect "keepAllFacetsOnSelection"

When having set:

plugin.tx_solr.search.faceting.keepAllFacetsOnSelection = 1

This setting doesn't get respected by "queryGroup" facets. If you
select an option of another facet (for example "type") the amount
of results changes for "queryGroup" facet options.

On the other hand if you select a "queryGroup" facet option the
number of results for other facet options (for example "type")
don't change.

Change-Id: I90783ac3502c9eba9bb418dc05557887a99c3d58
Resolves: #54293
Releases: 3.0
Reviewed-on: https://review.typo3.org/26133
Reviewed-by: Ingo Renner
Tested-by: Ingo Renner