Player does not drop object if swap weapon to portalgun

[MyGamepedia]

Describe the bug

↑. Not work if swap to other weapon. Available in Portal and Portal 2. Looks absurd. For some reason in Portal portalgun in this situation start play hold animation after a while, unlike Portal 2. Found this problem quite by accident.

P2CE.

https://github.com/StrataSource/Portal-2-Community-Edition/assets/103366204/e41ac5e9-8a8a-4d57-ad3f-cf81aef89458

Portal.

https://github.com/StrataSource/Portal-2-Community-Edition/assets/103366204/077690df-41a8-4cb3-9271-5f303297188d

Portal 2.

https://github.com/StrataSource/Portal-2-Community-Edition/assets/103366204/ef329151-590c-48ec-ac70-2bfc81738f8e

Issue Map

Any with portalgun, other weapon and physics object that player can pick up.

To Reproduce

1. Open any map.
2. Enter in console ent_create_portal_metal_sphere; sv_cheats 1; give weapon_portalgun; give weapon_cubemap; use weapon_cubemap.
3. Enter in console bind your_key "use weapon_portalgun"
4. Pick up cube.
5. Use weapon portalgun.
6. Now you are in an absurd situation.

Operating System

Any.