bugfixes

hooks/update.format.full

@@ -56,7 +56,7 @@ refs/heads/*)
 		# Ignore "fatal: You are on a branch yet to be born"
 		set +e
 	fi
-	git --work-tree="${my_work_tree}" --git-dir="." checkout -f >/dev/null
+	git --work-tree="${my_work_tree}" --git-dir="." checkout "${ref_name}" -f >/dev/null
 	my_changes=$(git --work-tree="${my_work_tree}" --git-dir="." diff --name-status HEAD $new_rev)
 	if [ -n "$(echo "$my_changes" | grep -e "^A")" ]; then
 		echo "$my_changes" | grep -e "^A" | cut -f 2 | \