[0.15.1] Quitting while game is loading = crash

[papercrane]

Doesn't happen with 0.14.23.

If I launch the game then quit while the initial loading bar is on screen, I get a crash before the loading finishes.

0.000 2017-04-25 00:29:54; Factorio 0.15.1 (build 29050, mac, steam)
0.000 Operating system: Mac OS X 10.12.4
0.000 Program arguments: "/Users/papercrane/Library/Application Support/Steam/steamapps/common/Factorio/factorio.app"
0.000 Read data path: /Users/papercrane/Library/Application Support/Steam/steamapps/common/Factorio/factorio.app/Contents/data
0.000 Write data path: /Users/papercrane/Library/Application Support/factorio
0.000 Binaries path: /Users/papercrane/Library/Application Support/Steam/steamapps/common
0.006 System info: [CPU: Intel(R) Core(TM) i7-4980HQ CPU @ 2.80GHz, 8 cores, RAM: 16384MB]
0.015 Display options: [FullScreen: 0] [VSync: 1] [UIScale: 100%] [MultiSampling: OFF] [Screen: 255]
0.015 Available display adapters: 1
0.015 [0]: resolution 1680x1050px at [0,0]
0.015 Create display on adapter 0. Size 1280x720 at position [190, 147].
0.175 Initialised OpenGL:[0] NVIDIA GeForce GT 750M OpenGL Engine; driver: 2.1 NVIDIA-10.16.34 355.10.05.35f05
0.249 Graphics options: [Graphics quality: high] [Video memory usage: medium] [Light scale: 25%] [DXT: auto]
0.448 Loading mod core 0.0.0 (data.lua)
0.470 Loading mod base 0.15.1 (data.lua)
0.687 Loading mod base 0.15.1 (data-updates.lua)
0.809 Loading mod long-reach-fsm 0.0.7 (data-final-fixes.lua)
0.895 Checksum for core: 530912544
0.895 Checksum of base: 2731413614
0.895 Checksum of long-reach-fsm: 3674062281
1.077 Info PlayerData.cpp:55: Local player-data.json available, timestamp 1493104798
1.077 Info PlayerData.cpp:60: Cloud player-data.json available, timestamp 1493104796
1.217 Error CrashHandler.cpp:232: Received SIGSEGV
Factorio crashed. Generating symbolized stacktrace, please wait ...
#0 0x0000000100870d72 in Logger::logStacktrace(StackTraceInfo*) (in factorio) (Logger.cpp:408)
#1 0x000000010086215d in CrashHandler::writeStackTrace() (in factorio) (CrashHandler.cpp:106)
#2 0x00000001008620ee in CrashHandler::SignalHandler(int) (in factorio) (CrashHandler.cpp:237)
#3 0x00007fffa7ad4b3a in 0x00007fffa7ad4b3a
#4 0x00007fff8d8ebb32 in 0x00007fff8d8ebb32
#5 0x00000001005180dd in IDConnectorList::unregisterConnector(IDConnectorBase*) (in factorio) (IDConnectorList.cpp:17)
#6 0x000000010090b805 in ResourceEntityPrototype::~ResourceEntityPrototype() (in factorio) (IDConnector.cpp:65)
#7 0x00000001008a1b9e in ResourceEntityPrototype::~ResourceEntityPrototype() (in factorio) (ResourceEntityPrototype.hpp:7)
#8 0x000000010054778f in std::__1::vector<std::__1::unique_ptr<EntityPrototype, std::__1::default_delete<EntityPrototype> >, std::__1::allocator<std::__1::unique_ptr<EntityPrototype, std::__1::default_delete<EntityPrototype> > > >::~vector() (in factorio) (iterator:1350)
#9 0x00007fffa795a178 in 0x00007fffa795a178
#10 0x00007fffa795a4b2 in 0x00007fffa795a4b2
#11 0x000000010036c230 in 0x000000010036c230 (in factorio)
#12 0x000000010036b881 in LoadingSplashScreen::render(bool) (in factorio) (LoadingSplashScreen.cpp:78)
#13 0x0000000100324b03 in GlobalContext::init(bool, bool, bool) (in factorio) (GlobalContext.cpp:444)
#14 0x000000010064c782 in MainLoop::run(boost::filesystem::path const&, boost::filesystem::path const&, bool, bool, bool, std::__1::function<void ()>, boost::filesystem::path const&, MainLoop::HeavyMode) (in factorio) (MainLoop.cpp:166)
#15 0x000000010064957c in _al_mangled_main (in factorio) (Main.cpp:881)
#16 0x0000000100cde577 in +[AllegroAppDelegate app_main:] (in factorio) (osx_app_delegate.m:229)
#17 0x00007fff93b84bcd in 0x00007fff93b84bcd
#18 0x00007fffa7ade9af in 0x00007fffa7ade9af
#19 0x00007fffa7ade8fb in 0x00007fffa7ade8fb
#20 0x00007fffa7ade101 in 0x00007fffa7ade101
3.346 Error Util.cpp:76: Unexpected error occurred. If you're running the latest version of the game you can help us solve the problem by posting the contents of the log file on the Factorio forums.
Please also include the save file(s), any mods you may be using, and any steps you know of to reproduce the crash.

[posila]

Thanks for the report, fixed for 0.15.2