Steps to reproduce:

1. Create Discovery rule with 1 Host prototype.
2. Add Macros to that Host prototype
3. Execute LLD discovery and wait until Host is discovered.
4. Open the discovered host editing form and go to Macros tab.
5. Observe that host has discovered all the same Macros from prototype, but they are not editable - expected.
6. Switch to Inherited and host macros tab.
7. Switch back to Macros tab and observe the runtime error in overlay: