riched20: Don't create undos in ME_StreamIn

[Matt Finnicum]

This fixes bug 7148 - a regression caused by one of my older patches.
This restores the old code that prevented ME_StreamIn from erroneously
creating undos.

Changelog:
riched20: Don't create undos in ME_StreamIn

--Matt Finnicum

---
 dlls/riched20/editor.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
-------------- next part --------------
diff --git a/dlls/riched20/editor.c b/dlls/riched20/editor.c
index 561574f..0074ef3 100644
--- a/dlls/riched20/editor.c
+++ b/dlls/riched20/editor.c
@@ -597,7 +597,7 @@ static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stre
 {
   RTF_Info parser;
   ME_Style *style;
-  int from, to, to2;
+  int from, to, to2, nUndoMode;
   int nEventMask = editor->nEventMask;
   ME_InStream inStream;
 
@@ -619,6 +619,9 @@ static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stre
     ME_ClearTempStyle(editor);
     /* FIXME restore default paragraph formatting ! */
   }
+
+  nUndoMode = editor->nUndoMode;
+  editor->nUndoMode = umIgnore;
   
   inStream.editstream = stream;
   inStream.editstream->dwError = 0;
@@ -671,6 +674,7 @@ static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stre
       SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
   }
 
+  editor->nUndoMode = nUndoMode;
   if (format & SFF_SELECTION)
   {
     /* even if we didn't add an undo, we need to commit the ones added earlier */
-- 
1.4.4.4