diff --git a/src/vim9execute.c b/src/vim9execute.c
index 312c5fa..2d6a3fe 100644
--- a/src/vim9execute.c
+++ b/src/vim9execute.c
@@ -2611,8 +2611,10 @@
 
 	    case ISN_CEXPR_AUCMD:
 #ifdef FEAT_QUICKFIX
+		force_abort = TRUE;
 		if (trigger_cexpr_autocmd(iptr->isn_arg.number) == FAIL)
 		    goto on_error;
+		force_abort = FALSE;
 #endif
 		break;
 
@@ -3040,7 +3042,9 @@
 			s = tv2string(tv, &tofree, numbuf, 0);
 			if (s == NULL || *s == NUL)
 			{
+			    // cannot happen?
 			    clear_tv(tv);
+			    vim_free(tofree);
 			    goto on_error;
 			}
 		    }
@@ -3270,17 +3274,13 @@
 		    case ISN_PUSHCHANNEL:
 #ifdef FEAT_JOB_CHANNEL
 			tv->v_type = VAR_CHANNEL;
-			tv->vval.v_channel = iptr->isn_arg.channel;
-			if (tv->vval.v_channel != NULL)
-			    ++tv->vval.v_channel->ch_refcount;
+			tv->vval.v_channel = NULL;
 #endif
 			break;
 		    case ISN_PUSHJOB:
 #ifdef FEAT_JOB_CHANNEL
 			tv->v_type = VAR_JOB;
-			tv->vval.v_job = iptr->isn_arg.job;
-			if (tv->vval.v_job != NULL)
-			    ++tv->vval.v_job->jv_refcount;
+			tv->vval.v_job = NULL;
 #endif
 			break;
 		    default:
@@ -5644,26 +5644,12 @@
 		break;
 	    case ISN_PUSHCHANNEL:
 #ifdef FEAT_JOB_CHANNEL
-		{
-		    channel_T *channel = iptr->isn_arg.channel;
-
-		    smsg("%s%4d PUSHCHANNEL %d", pfx, current,
-					 channel == NULL ? 0 : channel->ch_id);
-		}
+		smsg("%s%4d PUSHCHANNEL 0", pfx, current);
 #endif
 		break;
 	    case ISN_PUSHJOB:
 #ifdef FEAT_JOB_CHANNEL
-		{
-		    typval_T	tv;
-		    char_u	*name;
-		    char_u	buf[NUMBUFLEN];
-
-		    tv.v_type = VAR_JOB;
-		    tv.vval.v_job = iptr->isn_arg.job;
-		    name = job_to_string_buf(&tv, buf);
-		    smsg("%s%4d PUSHJOB \"%s\"", pfx, current, name);
-		}
+		smsg("%s%4d PUSHJOB \"no process\"", pfx, current);
 #endif
 		break;
 	    case ISN_PUSHEXC: