* array.c (ary_join_1): should recurse for element array.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24026 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/array.c b/array.c
index 0b825dab5f..52981a2b4f 100644
--- a/array.c
+++ b/array.c
@@ -1570,6 +1570,7 @@ ary_join_1(VALUE obj, VALUE ary, VALUE sep, long i, VALUE result)
 	    rb_str_buf_append(result, val);
 	    break;
 	  case T_ARRAY:
+	    obj = val;
 	  ary_join:
 	    if (val == ary) {
 		val = rb_usascii_str_new2("[...]");