Memory leak(s) in QScriptEngine.

Declaring a QScriptEngine, as in the following line of code:
QScriptEngine scriptEngine;
causes the following memory leak report to be generated on Windows, Visual Studio .net (2003).

Detected memory leaks!
Dumping objects ->

normal block at 0x019246F8, 4 bytes long.
Data: < F > 18 46 92 01

normal block at 0x01924688, 48 bytes long.
Data: < ? > 00 00 00 00 00 00 00 00 FF FF FF 3F 9E 88 EC 04

normal block at 0x01924618, 48 bytes long.
Data: < @ > 00 00 00 00 00 00 00 00 00 00 00 40 9E 88 EC 04

normal block at 0x019245C0, 24 bytes long.
Data: < > 00 CD CD CD 00 00 00 00 00 00 00 00 00 00 00 00

normal block at 0x01924580, 4 bytes long.
Data: < E > C0 45 92 01

normal block at 0x01924540, 4 bytes long.
Data: < E > 80 45 92 01

normal block at 0x01924210, 24 bytes long.
Data: < > 00 CD CD CD 00 00 00 00 00 00 00 00 00 00 00 00

normal block at 0x0191E990, 4 bytes long.
Data: < B > 10 42 92 01

normal block at 0x0191E950, 4 bytes long.
Data: < > 90 E9 91 01
Object dump complete.

This did not occur in Qt 4.5.2