converting "\uFEE0\uFE8E" to the "\uFEFC\uFEFF" while reording the text via fribidi

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Hi there,

I'm using Fribidi for reordering my texts before displaying it on my
embedded device.
For some special characters like"\uFE8D\uFEE3\uFEE0\uFE8E\FB8e"//=D8=A7=D9=
=85=D9=84=D8=A7=DA=A9
which contain "\uFEE0\uFE8E"// =D9=84+=D8=A7
it convert these specific characters to the "\uFEFC\uFEFF" =D9=84=D8=A7+zer=
o width
space
which cause some problems to me.
How could I order to preventing from this replacements?
this is how use Fribidi:

stat =3D  fribidi_log2vis(
/* input */
utf16Buf,
tmpLen,
&pbase_dir,
/* output */
reorderedStr,
NULL,
NULL,
NULL);

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<div dir=3D"ltr">
<p>Hi there,</p>
<p>I&#39;m using Fribidi for reordering my texts before displaying it on my=
 embedded device.<br>
For some special characters like&quot;\uFE8D\uFEE3\uFEE0\uFE8E\FB8e&quot;//=
=D8=A7=D9=85=D9=84=D8=A7=DA=A9<br>
which contain &quot;\uFEE0\uFE8E&quot;// =D9=84+=D8=A7<br>
it convert these specific characters to the &quot;\uFEFC\uFEFF&quot; =D9=84=
=D8=A7+zero width space<br>
which cause some problems to me.<br>
How could I order to preventing from this replacements?<br>
this is how  use Fribidi:</p>

<div><br></div><div>
<pre><code>stat =3D  fribidi_log2vis(
/* input */
utf16Buf,
tmpLen,
&amp;pbase_dir,
/* output */
reorderedStr,
NULL,
NULL,
NULL);</code></pre>

</div></div>

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