Bug where we forget to unregister signal #33279

Job	Run time
Lint with OpenDream	27s
Compile Maps	46s
Run Linters	2m 42s
Find Maps to Test	9s
Windows Build	3m 20s
Unit Tests (chinook) / run_unit_tests	8m 42s
Unit Tests (corsat) / run_unit_tests	5m 20s
Unit Tests (almayer) / run_unit_tests	5m 25s
Unit Tests (bigredv2) / run_unit_tests	6m 42s
Unit Tests (desert_dam) / run_unit_tests	5m 51s
Unit Tests (fiorina_sciannex) / run_unit_tests	5m 13s
Unit Tests (ice_colony_v2) / run_unit_tests	5m 16s
Unit Tests (kutjevo) / run_unit_tests	5m 43s
Unit Tests (lv522_chances_claim) / run_unit_tests	5m 17s
Unit Tests (lv624) / run_unit_tests	5m 27s
Unit Tests (new_varadero) / run_unit_tests	6m 19s
Unit Tests (prison_station_fop) / run_unit_tests	5m 14s
Unit Tests (lv759_hybrisa_prospera) / run_unit_tests	6m 37s
Unit Tests (runtime) / run_unit_tests	5m 49s
Unit Tests (shivas_snowball) / run_unit_tests	5m 15s
Unit Tests (sorokyne_strata) / run_unit_tests	5m 42s
Unit Tests (whiskey_outpost_v2) / run_unit_tests	4m 59s
Alternate Tests (516, 1648, runtime) / run_unit_tests	5m 26s
Check Alternate Tests	1s
	1h 51m 42s

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