OLEAUT32: Fix regression in OLEFontImpl_Clone

[Alex Villací­s Lasso]

Lately, all VB6 applications crash on exit. This weekend, I found the 
cause. Apparently the VB6 runtime creates a standard OLEFont object, and 
then calls IFont::clone() on it to get a second object. At exit, the VB6 
runtime disposes of both objects. However, the recent OLEFont changes 
introduced a bug in which the cloning fails to clone the connection 
points associated with the object. Therefore the dispose of one of the 
objects frees the connection points, and the dispose of the second 
object crashes on attempt to dispose an already-freed object.

Changelog:

* Create new empty connection points on clone of OLEFont

Alex Villacís Lasso
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