Fix some issues when saving menus

[SharkyKZ]

Fixes #27828 and #26947.

Summary of Changes

Append ID to redirect URL so it doesn't get lost.
Clear session data when applying changes to load data from database.

Testing Instructions

Create two menus (menu1 and menu2).
Edit menu2.
Change its Menu Type to menu1.
Click Save.
After saving fails, change its menu type to menu3 and save.
View menus.

Edit a menu.
Remove its menu type.
Use browser tools to circumvent JS validation (remove required class and attribute from menu type field).
Click Save.
After saving fails, edit menu type back to what it was.
Save.

Expected result

1. menu2 type changed to menu3.
2. Menu saved.

Actual result

1. A new menu with type menu3 is created.
2. Saving fails with error: Save failed with the following error: Menu type exists:...

Documentation Changes Required

No.

[joomdonation]

I have tested this item ✅ successfully on 1a681df

---

_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/28053.}

[infograf768]

I have tested this item ✅ successfully on 1a681df

---

_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/28053.}

[infograf768]

rtc

---

_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/28053.}