[FIX] web: restore /apps/<app> controller

Since JS refactoring of ActionManager at 32b8cec536, the /apps/<app> controller
was not working anymore as the refactoring dropped the support of `sa` as URL
state.

closes odoo/odoo#33679

Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>

addons/web/static/src/js/chrome/action_manager_act_window.js

@@ -47,7 +47,10 @@ ActionManager.include({
      * @param {string} [state.view_type]
      */
     loadState: function (state) {
+        var callersArguments = arguments;
+        var self = this;
         var action;
+        var def;
         var options = {
             clear_breadcrumbs: true,
             pushState: false,
@@ -102,11 +105,20 @@ ActionManager.include({
                 action = lastAction;
                 options.viewType = state.view_type;
             }
+        } else if (state.sa) {
+            def = this._rpc({
+                route: '/web/session/get_session_action',
+                params: {key: state.sa},
+            }).then(function (sessionAction) {
+                action = sessionAction;
+            });
         }
-        if (action) {
-            return this.doAction(action, options);
-        }
-        return this._super.apply(this, arguments);
+        return $.when(def).then(function () {
+            if (action) {
+                return self.doAction(action, options);
+            }
+            return self._super.apply(self, callersArguments);
+        });
     },
 
     //--------------------------------------------------------------------------

addons/web/static/tests/chrome/action_manager_tests.js

@@ -1135,6 +1135,30 @@ QUnit.module('ActionManager', {
         actionManager.destroy();
     });
 
+    QUnit.test('state.sa should load action from session', function (assert) {
+        assert.expect(1);
+
+        var actionManager = createActionManager({
+            actions: this.actions,
+            archs: this.archs,
+            data: this.data,
+            mockRPC: function (route, args) {
+                if (route === '/web/session/get_session_action') {
+                    return $.when(1);
+                }
+                return this._super.apply(this, arguments);
+            },
+        });
+        actionManager.loadState({
+            sa: 1,
+        });
+
+        assert.strictEqual(actionManager.$('.o_kanban_view').length, 1,
+            "should have rendered a kanban view");
+
+        actionManager.destroy();
+    });
+
     QUnit.module('Concurrency management');
 
     QUnit.test('drop previous actions if possible', function (assert) {