Rename to g:neosnippet#enable_completed_snippet

autoload/neosnippet/handlers.vim

@@ -28,7 +28,7 @@ set cpo&vim
 
 function! neosnippet#handlers#_complete_done() "{{{
   if empty(v:completed_item)
-        \ || !g:neosnippet#enable_complete_done
+        \ || !g:neosnippet#enable_completed_snippet
         \ || v:completed_item.word !~ '($'
     return
   endif

autoload/neosnippet/util.vim

@@ -91,7 +91,10 @@ function! neosnippet#util#expand(path) "{{{
         \ expand(escape(a:path, '*?[]"={}'), 1))
 endfunction"}}}
 function! neosnippet#util#set_default(var, val, ...)  "{{{
-  if !exists(a:var)
+  let old_var = get(a:000, 0, '')
+  if exists(old_var)
+    let {a:var} = {old_var}
+  elseif !exists(a:var)
     let {a:var} = a:val
   endif
 endfunction"}}}