Stepping over QLocale instantiation causes assertion and crash

When creating a QLocale object on the stack, and stepping over or into this line of code, Qt runs into a qFatal.

The following assert information is displayed:
ASSERT: "index <= locale_data_size" in file c:\ndk_buildrepos\qt-desktop\src\corelib\tools\qlocale.cpp, line 2175

When attempting to continue execution, a Runtime Error occurs.

The error only happens when stepping over or into that line of code, not during normal "run over" debugging.