problem of partially shelve changes from 1 hunk with editor

I have problem shelving part of changes from the single hunk. I've invoked shelve then started editor and removed changes in #ifdef part. Then save the file, but bzr refuse to shelve this changes "No changes to shelve"

C:\work\ds1963s_low>bzr shelve DS1963S_low.h
--- DS1963S_low.h 2010-01-12 11:19:22 +0000
+++ DS1963S_low.h 2010-02-10 14:37:38 +0000
@@ -88,9 +88,12 @@
     DS1963S_l_Fsm_t *fsm;
 } DSLProcessDataClosure, *PDSLProcessDataClosure;

-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __DS1963S_low_h */
+
+extern const CFBlackBox2pClass DSL_BB;
+CFBool DSL_process_data_hi (PCFClosure pctx, PCFMessageBase pmsg );
+CFBool DSL_process_data_low (PCFClosure pctx, PCFMessageBase pmsg );
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* __DS1963S_low_h */
No changes to shelve.

Note that file was modified as result of pending merge. See attached 3 copies of the relevant part of my file, changed is on disk, old and new is created by shelve itself, new is edited.