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Not entirely clear why this generates two pages of output, but it
does seem to demonstrate the problem —<br>
<br>
<tt>% !TeX Program=Ini-XeTeX</tt><tt><br>
</tt><tt><br>
</tt><tt>\catcode `\ = 10</tt><tt><br>
</tt><tt>\catcode `\ = 10</tt><tt><br>
</tt><tt>\catcode `\{ = 1</tt><tt><br>
</tt><tt>\catcode `\} = 2</tt><tt><br>
</tt><tt>\catcode `\^ = 7</tt><tt><br>
</tt><tt>\font \tenrm = cmr10</tt><tt><br>
</tt><tt>\tenrm</tt><tt><br>
</tt><tt><br>
</tt><tt>\lccode "200D = "200D</tt><tt><br>
</tt><tt>\patterns {^^^^200d1^^^^200d}</tt><tt><br>
</tt><tt><br>
</tt><tt>\def \showhyphens </tt><tt><br>
</tt><tt> {</tt><tt><br>
</tt><tt> \setbox 0 = \vbox </tt><tt><br>
</tt><tt> {</tt><tt><br>
</tt><tt> \parfillskip = 0 pt </tt><tt><br>
</tt><tt> \hsize = \dimen 10</tt><tt><br>
</tt><tt> \tenrm </tt><tt><br>
</tt><tt> \pretolerance = -1</tt><tt><br>
</tt><tt> \tolerance = -1</tt><tt><br>
</tt><tt> \hbadness = 0</tt><tt><br>
</tt><tt> \showboxdepth = 0 \ #1</tt><tt><br>
</tt><tt> }</tt><tt><br>
</tt><tt> }</tt><tt><br>
</tt><tt><br>
</tt><tt>\lccode "200D = "200D</tt><tt><br>
</tt><tt>\catcode "200D = 11</tt><tt><br>
</tt><tt>bla^^^^200d^^^^200dbla</tt><tt><br>
</tt><tt>\showhyphens {bla^^^^200d^^^^200dbla}</tt><tt><br>
</tt><tt><br>
</tt><tt>\end</tt><br>
-- <br>
<i>Philip Taylor</i><br>
<br>
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