updated for version 7.0065
diff --git a/runtime/indent/ishd.vim b/runtime/indent/ishd.vim
index 9b4d7ff..f55f7dc 100644
--- a/runtime/indent/ishd.vim
+++ b/runtime/indent/ishd.vim
@@ -8,11 +8,14 @@
 endif
 let b:did_indent = 1
 
+setlocal autoindent
 setlocal indentexpr=GetIshdIndent(v:lnum)
 setlocal indentkeys&
 setlocal indentkeys+==else,=elseif,=endif,=end,=begin,<:>
 " setlocal indentkeys-=0#
 
+let b:undo_indent = "setl ai< indentexpr< indentkeys<"
+
 " Only define the function once.
 if exists("*GetIshdIndent")
     finish