Segmentation fault - Scenario Editor

[Langbart]

When I start the Scenario Editor on the latest SVN version [25648] and follow these steps, the result is a segmentation fault:

pyrogenesis was compiled with optimization - stepping may behave oddly; variables may not be available.
Process 2619 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
    frame #0: 0x00000001010a1c80 pyrogenesis`::mozalloc_abort(msg=<unavailable>) at mozalloc_abort.cpp:33:3 [opt]
   30  	#ifdef MOZ_WIDGET_ANDROID
   31  	  abortThroughJava(msg);
   32  	#endif
-> 33  	  MOZ_CRASH();
   34  	}
   35  	
   36  	#ifdef MOZ_WIDGET_ANDROID
Target 0: (pyrogenesis) stopped.

(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
  * frame #0: 0x00000001010a1c80 pyrogenesis`::mozalloc_abort(msg=<unavailable>) at mozalloc_abort.cpp:33:3 [opt]
    frame #1: 0x0000000101ab287d pyrogenesis`::abort() at mozalloc_abort.cpp:82:3 [opt]
    frame #2: 0x00000001004fa016 pyrogenesis`sys_display_error(text=<unavailable>, flags=6) at unix.cpp:268:4 [opt]
    frame #3: 0x00000001004d2308 pyrogenesis`debug_DisplayError(wchar_t const*, unsigned long, void*, wchar_t const*, wchar_t const*, int, char const*, long volatile*) [inlined] CallDisplayError(text=L"Assertion failed: \"m_Contexts.empty() && \"All contexts must be destroyed before calling JS_ShutDown!\"\"\r\nLocation: ScriptEngine.h:47 (~ScriptEngine)\r\n\r\nCall stack:\r\n\r\n(error while dumping stack: Function not supported)\r\nerrno = 0 (No error reported here)\r\nOS error = ?\r\n", flags=6) at debug.cpp:374:8 [opt]
    frame #4: 0x00000001004d22eb pyrogenesis`debug_DisplayError(description=<unavailable>, flags=6, context=0x00007ffeefbfeb30, lastFuncToSkip=<no summary available>, pathname=<no summary available>, line=<no summary available>, func=<no value available>, suppress=<no summary available>) at debug.cpp:462 [opt]
    frame #5: 0x00000001004d2b9e pyrogenesis`debug_OnAssertionFailure(expr=<no summary available>, suppress=<no summary available>, file=<no summary available>, line=<no summary available>, func=<no value available>) at debug.cpp:549:9 [opt]
    frame #6: 0x0000000100012508 pyrogenesis`ScriptEngine::~ScriptEngine(this=<no summary available>) at ScriptEngine.h:47:3 [opt]
    frame #7: 0x0000000100004c56 pyrogenesis`RunGameOrAtlas(int, char const**) [inlined] ScriptEngine::~ScriptEngine(this=<no summary available>) at ScriptEngine.h:46:2 [opt]
    frame #8: 0x0000000100004c51 pyrogenesis`RunGameOrAtlas(argc=<no summary available>, argv=<no summary available>) at main.cpp:708 [opt]
    frame #9: 0x0000000100002176 pyrogenesis`main(argc=<no summary available>, argv=<no summary available>) at main.cpp:738:2 [opt]
    frame #10: 0x00007fff71f52cc9 libdyld.dylib`start + 1
(lldb) 

The problem is not reproducible for A24b.