refs: don't dereference on rename

diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index 1f94f7a262216f0f177a262a80c4db57903d6551..85f4650ab872a0da3e8fb367f781c72fe5515bcc 100644 (file)
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -42,6 +42,13 @@
  * value to ref_update::flags
  */
 
+/*
+ * Used as a flag in ref_update::flags when we want to log a ref
+ * update but not actually perform it.  This is used when a symbolic
+ * ref update is split up.
+ */
+#define REF_LOG_ONLY 0x80
+
 /*
  * Return true iff refname is minimally safe. "Safe" here means that
  * deleting a loose reference by this name will not do any damage, for