Prevent sticky query params for plugin alloc filtering

ui/app/routes/csi/plugins/plugin/allocations.js

@@ -0,0 +1,27 @@
+import Route from '@ember/routing/route';
+import { collect } from '@ember/object/computed';
+import { watchRecord } from 'nomad-ui/utils/properties/watch';
+import WithWatchers from 'nomad-ui/mixins/with-watchers';
+
+export default Route.extend(WithWatchers, {
+  startWatchers(controller, model) {
+    if (!model) return;
+
+    controller.set('watchers', {
+      model: this.watch.perform(model),
+    });
+  },
+
+  resetController(controller, isExiting) {
+    if (isExiting) {
+      controller.setProperties({
+        currentPage: 1,
+        qpType: '',
+        qpHealth: '',
+      });
+    }
+  },
+
+  watch: watchRecord('plugin'),
+  watchers: collect('watch'),
+});