It turns out job control in both hush and lash was broken by the

signal handling in cmdedit.c.  Disabling it makes the shells behave
themselves again.  hush isn't quite there, but is getting close...
 -Erik

cmdedit.c

@@ -571,6 +571,7 @@ extern void cmdedit_init(void)
 		atexit(cmdedit_reset_term);	/* be sure to do this only once */
 	}
 
+#if 0
 	if ((handlers_sets & SET_TERM_HANDLERS) == 0) {
 		signal(SIGKILL, clean_up_and_die);
 		signal(SIGINT, clean_up_and_die);
@@ -578,6 +579,7 @@ extern void cmdedit_init(void)
 		signal(SIGTERM, clean_up_and_die);
 		handlers_sets |= SET_TERM_HANDLERS;
 	}
+#endif	
 
 }
 
@@ -1487,6 +1489,7 @@ prepare_to_die:
 extern void cmdedit_terminate(void)
 {
 	cmdedit_reset_term();
+#if 0
 	if ((handlers_sets & SET_TERM_HANDLERS) != 0) {
 		signal(SIGKILL, SIG_DFL);
 		signal(SIGINT, SIG_DFL);
@@ -1495,6 +1498,7 @@ extern void cmdedit_terminate(void)
 		signal(SIGWINCH, SIG_DFL);
 		handlers_sets &= ~SET_TERM_HANDLERS;
 	}
+#endif	
 }
 
 #endif	/* BB_FEATURE_COMMAND_EDITING */