101623: Fix Browse By Vocabulary on comcol page

src/app/browse-by/browse-by-taxonomy-page/browse-by-taxonomy-page.component.html

@@ -6,5 +6,9 @@
                             (deselect)="onDeselect($event)">
     </ds-vocabulary-treeview>
   </div>
-  <a class="btn btn-primary" [routerLink]="['/search']" [queryParams]="queryParams">{{ 'browse.taxonomy.button' | translate }}</a>
+  <a class="btn btn-primary"
+     [routerLink]="['/search']"
+     [queryParams]="queryParams"
+     [queryParamsHandling]="'merge'">
+    {{ 'browse.taxonomy.button' | translate }}</a>
 </div>

src/assets/i18n/en.json5

@@ -701,6 +701,8 @@
 
   "browse.comcol.by.subject": "By Subject",
 
+  "browse.comcol.by.srsc": "By Subject Category",
+
   "browse.comcol.by.title": "By Title",
 
   "browse.comcol.head": "Browse",