With the mod "FFF 402 radars" installed, creating a blueprint containing both a filter combinator and a radar can cause an assertion error at scripts/event-setup.lua:157.
Reproducing the error:
1. Install Factorio 1.1.110, FFF 402 radars 1.0.5, and Filter Combinator (Reimagined) 1.0.5.
2. Create a new sandbox.
3. Build a filter combinator and a radar (not ghosts).
4. Create a new blueprint containing the two entities.
