fix pardef issues

- 'geterror' property is not deleted in some cases

pardef.c

@@ -1315,6 +1315,7 @@ void ParUpdateNode(hdbValue value) {
     } else {
       /* bare object (parameter "") */
       node = ctx->obj->node;
+      ctx->par->node = node;
       snprintf(sicscommand, sizeof sicscommand, "%s = ", ctx->obj->name);
     }
     SetHdbProperty(node, "sicscommand", sicscommand);
@@ -1331,6 +1332,7 @@ void ParUpdateNode(hdbValue value) {
         SetHdbProperty(node, "visible", "false");
       }
     }
+    if (GetHdbProp("geterror")) skip_unchanged = 0;
     switch (value.dataType) {
     case HIPFLOAT:
       if (value.v.doubleValue == PAR_NAN) {
@@ -1355,8 +1357,8 @@ void ParUpdateNode(hdbValue value) {
       if (skip_unchanged && node->value.v.intValue == value.v.intValue) return;
       break;
     case HIPTEXT:
-    if (strcmp(node->value.v.text, value.v.text) == 0) return;
-      break;
+      if (skip_unchanged && strcmp(node->value.v.text, value.v.text) == 0) return;
+          break;
     default:
       return;
     }
@@ -1708,6 +1710,9 @@ void ParKill(void *object)
   p = o->infoList;
   while (p) {
     q = p->next;
+    if (p->node == o->node) {
+       p->node = NULL; /* avoid removing the object node, this is done below */
+    }
     ParKillThisPar(p);
     p = q;
   }