We were not handling the "sync next" fence properly as we sent the response
right after we got the request (instead of waiting for the next command).
This created a race where we could lose pixel format sync between the client
and the server.


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4943 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/rfb/VNCSConnectionST.h b/common/rfb/VNCSConnectionST.h
index 72dc59c..5eb908a 100644
--- a/common/rfb/VNCSConnectionST.h
+++ b/common/rfb/VNCSConnectionST.h
@@ -183,7 +183,7 @@
 
     bool inProcessMessages;
 
-    bool syncFence;
+    bool pendingSyncFence, syncFence;
     rdr::U32 fenceFlags;
     unsigned fenceDataLen;
     char *fenceData;