Laravel - Using `SQL_CALC_FOUND_ROWS` with relationship

In my Laravel app I was doing an ordinary query on a model (ModelA) whilst making use of SQL_CALC_FOUND_ROWS and then performing SELECT FOUND_ROWS() afterwards to retrieve the count of all records since the first query used LIMIT and OFFSET.

This worked perfectly fine, but now that I've added a relationship to the model I was querying above, if I do the same query but using with->('modelB'), this query is performed after the initial query and before SELECT FOUND_ROWS() so I get the count of the ModelB results instead of ModelA as I was expecting.

Is there a way to make this work as desired where I get the count of the first query and not the relationship?

e.g. This works fine:

$query = ModelA::select([DB::raw("SQL_CALC_FOUND_ROWS *")])
    ->where('active', 1);

    // conditional ->where()'s

$query->skip(intval($skip))
    ->take(intval($take))
    ->orderBy($column, $dir);

$results = $query->get();

$total = DB::select(DB::raw("SELECT FOUND_ROWS() AS 'total';"))[0]->total;

but changing the first line to this doesn't:

$query = ModelA::with('modelB')
    ->select([DB::raw("SQL_CALC_FOUND_ROWS *")])
    ->where('active', 1);

via Chebli Mohamed