Group input sockets of type Object don't have an option to set their default value. Yet, if the group input socket was created by connecting a socket with an assigned object, it will be considered its default value whenever the node group is used, and it follows that the default is not controllable or removable, which is the issue in this report..

Original Report

System Information
Operating system: Windows 11
Graphics card: GeForce RTX 2070

Blender Version
Broken: 3.2.0
Worked: missing

Short description of error
Missing "Default" field for "Object type" in Geometry nodes input.

It's more missing features than the bug, but I have some problems. But if you copy geonodes system to another object, 'defaults' a saved in properties. In my case, I expect that I will have empty fields.

There is a workaround, I can create empty object input and after connect where I need to. But a good user frendly interface doesn't work that way.

Exact steps for others to reproduce the error

1. Create new Geo Node/
2. Add "object info" and pick some object into it.

3. Connect the yellow socket to the "group input" empty gray socket, to create a new input value.

4. Go to 'Group Input'--Side N panel-->Group-->inputs--> select 'object' from the list. Change default value.

Based on the default startup or an attached .blend file (as simple as possible).