#4 Text syncronization delayed

[Sole Architect]

In the Unicode build, if a user changes a selection of
text, but does not change the length of the buffer, and
the entire selection of text is in the second half of
the buffer (greater than or equal to 32767.5 (half a
character because the LOBYTE() of the 32767'th is
included), the buffer would not syncronize, until the
length of the text in the buffer changed. This is due
to a mistake when comparing the buffers (which needs to
be done in order to gain an escape code, as well as
making it more efficient).

This bug is NOT related to bug #1242710.