System Information
Operating system:
Graphics card:
Blender Version
Broken: actual master
Short description of error
When the geometrynode tree is pinned and another object is selected, the attribute search dropdown is empty.
Exact steps for others to reproduce the error
Add a cube, add a geometry nodes modifier, pin the geonodes panel to the cube and add an empty. Then try to use some attribute dropdown search.
See the two screenshots

