JSON load order issue with monster death_function and spells

[RenechCDDA]

Describe the bug

#74678

quickling shadow does not fire any spell on death. Investigation shows that is because has_effect is never set to true

Cataclysm-DDA/src/monster.cpp

Line 2846 in 0b942b3

if( type->mdeath_effect.has_effect ) {

because the spell is considered invalid

Cataclysm-DDA/src/monstergenerator.cpp

Line 1824 in 0b942b3

has_effect = sp.is_valid();

Renaming monster_spells.json to amonster_spells.json works around this.

Attach save file

For reproduction's sake:
Xeddd-trimmed.tar.gz

Steps to reproduce

load save, kill quickling shadow next to you. Hold tab or use debug menu or whatever.

Expected behavior

The death spells should fire on death, regardless of how the json files are named

Screenshots

No response

Versions and configuration

aa5d1b1

Additional context

No response