msctf: Implement ITfContext::GetDocumentMgr.
diff --git a/dlls/msctf/documentmgr.c b/dlls/msctf/documentmgr.c
index 3d4dbe9..09cadb6 100644
--- a/dlls/msctf/documentmgr.c
+++ b/dlls/msctf/documentmgr.c
@@ -146,7 +146,7 @@
     This->contextStack[0] = check;
 
     ITfThreadMgrEventSink_OnPushContext(This->ThreadMgrSink,check);
-    Context_Initialize(check);
+    Context_Initialize(check, iface);
 
     return S_OK;
 }