[BUG] - Amnezia settings disappear while editing

[dkoppenh]

Describe the bug
While I'm editing an Amnezia configuration and clear the "Junk packet count", the Amnezia properties become hidden. They still exist, and I can show them again by turning on the toggle switch.

After turning on that toggle again, I can freely edit or clear the "Junk packet count" without having the Amnezia properties disappear.

Smartphone (please complete the following information):

• Device: LG Wing
• Android Version: Android 13
• App Version: 3.5.4
• Backend: Userspace

To Reproduce
Steps to reproduce the behavior:

1. Edit a connection profile that already has Amnezia properties.
2. Notice the Amnezia properties appear automatically when you start to edit the profile (thanks for that fix!)
3. Enter the "Junk packet count" field to edit it.
4. Backspace to erase the value.
5. The Amnezia properties disappear and the toggle switch to show the properties turns off.

Expected behavior
You should be able to freely edit Amnezia properties without them disappearing during the edit.