commit patch from LP#1381965 and two testcases, one showing this is fixed,

another showing deeper problems (probably LP#1381993 “non-list contexts” or
the IFS_WS/IFS_IWS story, perhaps *all* IFS_WS (not just ternaries) really
should be IFS_IWS instead?)

eval.c

@@ -23,7 +23,7 @@
 
 #include "sh.h"
 
-__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.153 2014/10/07 15:22:16 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.154 2014/10/19 20:56:32 tg Exp $");
 
 /*
  * string expansion
@@ -631,7 +631,7 @@ expand(
 						 */
 						if (!Flag(FSH)) {
 							*dp++ = MAGIC;
-							*dp++ = '@' | 0x80;
+							*dp++ = 0x80 | '@';
 						}
 						break;
 					case '=':
@@ -664,7 +664,7 @@ expand(
 						f |= DOTEMP;
 						/* FALLTHROUGH */
 					default:
-						word = quote ? IFS_WORD : IFS_IWS;
+						word = quote || (!*x.str && (f & DOASNFIELD)) ? IFS_WORD : IFS_WS;
 						/* Enable tilde expansion */
 						tilde_ok = 1;
 						f |= DOTILDE;