Listing setParam only needs to be run when url history is specified

- added missing code to deleteManySubscriptions() so that it doesn't remove from all segments

assets/js/src/listing/listing.jsx

@@ -365,6 +365,7 @@ const Listing = React.createClass({
     }.bind(this));
   },
   setParams: function() {
+    if (this.props.location) {
       let params = Object.keys(this.state)
         .filter(key => {
           return (
@@ -393,14 +394,13 @@ const Listing = React.createClass({
         .filter(key => { return (key !== undefined) })
         .join('/');
 
-    // prepend with tab is specified
+      // prepend url with "tab" if specified
       if (this.props.tab !== undefined) {
         params = `/${ this.props.tab }/${ params }`;
       } else {
         params = `/${ params }`;
       }
 
-    if (this.props.location) {
       if (this.props.location.pathname !== params) {
         this.context.router.push(`${params}`);
       }

lib/Models/SubscriberSegment.php

@@ -129,6 +129,11 @@ class SubscriberSegment extends Model {
         'segment_id', $wp_segment->id
       );
     }
+
+    if(!empty($segment_ids)) {
+      $subscriptions = $subscriptions->whereIn('segment_id', $segment_ids);
+    }
+
     return $subscriptions->deleteMany();
   }