GuiTextEditControl getvalue/setvalue in TGE 1.52

I noticed, that the messagehud edit setvalue("") have no effect in TGE 1.52.

After some digging I found out that the stringbuffer stores an UTF16 and UTF8 value.
When using MessageHud_Edit.setvalue(""); it calles void StringBuffer::set(const UTF8 *in) clear the mBuffer but mBuffer8 is still filled up with the last text so echo(MessageHud_Edit.getvalue("")); returns the last content.

To fix it I added an mDirty8=true :

void StringBuffer::set(const UTF8 *in)
{
   incRequestCount8();
   // Convert and store. Note that a UTF16 version of the string cannot be longer.
   FrameTemp<UTF16> tmpBuff(dStrlen(in)+1);
   if(!in || in[0] == 0 || !convertUTF8toUTF16(in, tmpBuff, dStrlen(in)+1))
   {
      // Easy out, it's a blank string, or a bad string.
      mBuffer.clear();
      mBuffer.push_back(0);
[b]
//XXTH mbuffer8 would not be cleared !!!
	  mDirty8 = true;
[/b]
      AssertFatal(mBuffer.last() == 0, "StringBuffer::set UTF8 - not a null terminated string!");
      return;
   }
   
   // Otherwise, we've a copy to do. (This might not be strictly necessary.)
   mBuffer.setSize(dStrlen(tmpBuff)+1);
   dMemcpy(mBuffer.address(), tmpBuff, sizeof(UTF16) * mBuffer.size());
   mBuffer.compact();
   AssertFatal(mBuffer.last() == 0, "StringBuffer::set UTF8 - not a null terminated string!");
   mDirty8 = true;
}

Now it works again :)