JENKINS-64040 JENKINS-64136 Fix hidden page elements from radio blocks showing up when they shouldn't (#5046)

core/src/main/resources/lib/form/radioBlock/radioBlock.js

@@ -18,13 +18,7 @@ var radioBlockSupport = {
             n = blockStart;
         }
         while((n = n.next()) != blockEnd) {
-            if (show) {
-                n.style.visibility = "visible";
-                n.style.position = "static";
-            } else {
-                n.style.visibility = "hidden";
-                n.style.position = "absolute";
-            }
+            n.style.display = show ? "" : "none";
         }
         layoutUpdateCallback.call();
     }