"Cannot find a world to execute the query" error is thrown when exiting Play Mode after changing “Editor World” Query to “Default World” in Search Node Hierarchy

Steps to reproduce:
1. Create new Unity project
2. Install Entities package via Package Manager
3. Open Entities Hierarchy window (Window > Entities > Hierarchy)
4. Open Search Node Hierarchy window by pressing on the Search button in Entities Hierarchy window next to Search field
5. Enter Play Mode
6. In Search Node Hierarchy change “Editor World” Query to “Default World”
7. Exit Play Mode
8. Observe the Search window 

Actual results: error is thrown in Search window “[in Node Hierarchy] Cannot find a world to execute the query”
Expected results: no errors are thrown in Search window

Reproducible with versions: 6000.0.73f1, 6000.3.13f1, 6000.4.3f1, 6000.5.0b4, 6000.6.0a2

Tested on (OS): macOS Silicon Tahoe 26.4 (M1)

Notes:

•  in 6000.3, 6000.4 streams change query to “Client World” or “Server World”