From 0d958f04c12c269043eb195ef735ac675b43052f Mon Sep 17 00:00:00 2001
From: Bryan Housel <bryan@mapbox.com>
Date: Tue, 11 Dec 2018 16:37:36 -0500
Subject: [PATCH] Don't try to render a field that's not yet shown

---
 modules/ui/field.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/ui/field.js b/modules/ui/field.js
index e4859ec58..37a436e47 100644
--- a/modules/ui/field.js
+++ b/modules/ui/field.js
@@ -154,6 +154,8 @@ export function uiField(context, presetField, entity, options) {
             .classed('modified', isModified())
             .classed('present', isPresent())
             .each(function(d) {
+                if (!d.impl) return;  // field is not yet shown
+
                 var reference, help;
 
                 // instantiate field help