Hard crash when lizardman spirit died

[nega0]

and some stderr logs...

shortest_path.cpp:130 Shortest path from (68,93) to (72,89) 6 visited distance 5
creature.cpp:2732 Position reachable
creature.cpp:461 the goblin wizard spirit moving (1,-1)
creature.cpp:581 creature move time 223
model.cpp:133 Turn 195 dryad moving now
creature.cpp:2046 the lizardman spirit dies. Killed by dryad
fx_view_manager.cpp:57 FX spawn unordered: CIRCULAR_SPELL at:75, 89 dir:(0,0)
creature.cpp:581 creature move time 2854
main_loop.cpp:317 Time step 1
model.cpp:133 Turn 195 dryad moving now
window_view.cpp:289 Rebuilding UI
shortest_path.cpp:130 Shortest path from (69,91) to (71,90) 3 visited distance 2
fx_view_manager.cpp:94 FX spawn ordered: BUFF for: 4545688094572454186at: 75, 88.8333
fx_view_manager.cpp:115 FX kill: BUFF_WHITE for: 3629498645220150492
fx_view_manager.cpp:115 FX kill: DEBUFF_BROWN for: 3629498645220150492
creature.cpp:2046 the goblin warrior dies. Killed by dryad
FATAL time_queue.cpp:187 Creature not found lizardman spirit
zsh: segmentation fault  ./keeper --stderr