unpack-trees: check if we can perform the operation for submodules

diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index 4bed33d2aee963ed3f46104afff4bd6788e612c8..1eabbd88ac5bf7bc49c69003277872cd87a61102 100755 (executable)
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 GVF=GIT-VERSION-FILE
-DEF_VER=v2.12.0-rc0
+DEF_VER=v2.12.0-rc1
 
 LF='
 '