Filter pagination reset; catalog model retype tool

plugins/applications/frontend/views/ApplicationsList.vue

@@ -14,7 +14,7 @@
         placeholder="Search applications..."
         @input="debouncedSearch"
       />
-      <select v-model="filter" class="form-control" @change="loadApplications">
+      <select v-model="filter" class="form-control" @change="applyFilter">
         <option value="installable">Installable Applications</option>
         <option value="all">All Applications</option>
         <option value="hidden">Hidden Applications</option>
@@ -117,6 +117,19 @@ onMounted(() => {
   loadApplications()
 })
 
+// A filter change must go back to page 1. Selecting a filter while on page 5
+// asked the server for page 5 of a result set that now has one page, and the
+// list came back empty as though the filter matched nothing.
+//
+// setPage(1) writes the URL, which the composable's watcher picks up and
+// answers with onChange - so calling the loader as well would fetch twice.
+// Load directly only when already on page 1, where nothing changes and the
+// watcher stays silent.
+function applyFilter() {
+  if (page.value > 1) setPage(1)
+  else loadApplications()
+}
+
 async function loadApplications() {
   loading.value = true
   try {