Clear or reset the wordpress posts pagination while changing filters - filter

Question

I think it is simple, but I don't get it.
This is my filter:
<form class='post-filters'>
<select name="filter">
<?php
$filter_options = array(
'houses' => 'Houses',
'hotels' => 'Hotels',
);
foreach( $filter_options as $value => $label ) {
echo "<option ".selected( $_GET['filter'], $value )." value='$value'>$label</option>";
}
?>
</select>
<input type='submit' value='Filter!'>
</form>
Related PHP to apply the filter to the wordpress query:
<?php
global $destinations;
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$destinations = new WP_Query([
'paged' => $paged,
'location' => $location,
'category_name' => urldecode(get_query_var('filter')),
'posts_per_page' => 6
]);
?>
If I do select my "filter" and the result has more than six entries, I use next_posts_link() to see the next six results. The problem is now, if I'm on page 2 or 3 and the other filter has less than e.g. 6 entries, I will see no results while changing my filter.
How do I clear the get variable (/page/2/) while changing my filter?
Example:
category/subcategory/subsubcategory/page/3/?filter=houses
Now I select "filter" hotels
category/subcategory/subsubcategory/page/3/?filter=hotels
and the "/page/3" will not be cleared. So I can not see some posts.

Answer 1

It has been anwsered here:
https://wordpress.stackexchange.com/a/264266
function get_nopaging_url() {
$current_url = $_SERVER[REQUEST_URI];
$pattern = '/page\\/[0-9]+\\//i';
$nopaging_url = preg_replace($pattern, '', $current_url);
return $nopaging_url;
}
You could use this function to remove the pagination in your urls with filters.
See example:
<a href="<?php echo get_nopaging_url(); ?>?filter=houses">