force ISO enter to render as it does not show in preview

TODO.md

@@ -0,0 +1,9 @@
+TODO:
+  * Make flat stem support default
+  * make flat inner shape default
+  * support repositioning to print on the back surface of the keycap
+  * implement regular polygon for skin extrusions
+  * switch to skin-shaped extrusions by default
+  * kailh choc has a non-square key unit; should I get that working for layouts etc? 
+  * move everything over to layouts requiring a child key
+  * add an "errors" or "warnings" or "suggestions" echo section in key.scad, right when the key is being made, so the errors don't get lost / repeated

customizer.scad

@@ -928,9 +928,10 @@ module iso_enter() {
   // this equals (unit_length(1.5) - unit_length(1.25)) / 2
   /* $dish_overdraw_width = 2.38125; */
 
-
-  stabilized(vertical=true) {
-    children();
+  render() {
+    stabilized(vertical=true) {
+      children();
+    }
   }
 }
 // kind of a catch-all at this point for any directive that doesn't fit in the other files

src/key_types.scad

@@ -55,8 +55,9 @@ module iso_enter() {
   // this equals (unit_length(1.5) - unit_length(1.25)) / 2
   /* $dish_overdraw_width = 2.38125; */
 
-
-  stabilized(vertical=true) {
-    children();
+  render() {
+    stabilized(vertical=true) {
+      children();
+    }
   }
 }