I noticed this strange occurance just now.

If I have a class library, lets call it TestLib, with an object in it, which we will call Test
and have a property TestProp

Now I

LOCAL oTest AS Test OF TestLib

then go

oTest.TestP

and the intellisense will have kicked in and will be highlighting the TestProp property.
If I then make a spelling mistake

oTest.TestPq

It unselects the property, and has none selected.

If I now click TestProp instead of fixing the spelling mistake, it only appends the remaining characters. so I will have

oTest.TestPqop

Seems wrong to me :)