From a1e341a5c688a0068934d5c593a21c1d1f5f2b67 Mon Sep 17 00:00:00 2001
From: Ron Kok <ronkok@comcast.net>
Date: Fri, 22 Mar 2019 08:37:05 -0700
Subject: [PATCH] Improve MathML for \overset, \stackrel, and \underset (#1886)

* Fix \overset and \stackrel

* Fix indentation
---
 src/functions/supsub.js                | 4 ++--
 test/__snapshots__/mathml-spec.js.snap | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/functions/supsub.js b/src/functions/supsub.js
index 2769f851..c1ed88c6 100644
--- a/src/functions/supsub.js
+++ b/src/functions/supsub.js
@@ -217,7 +217,7 @@ defineFunctionBuilders({
         } else if (!group.sub) {
             const base = group.base;
             if (base && base.type === "op" && base.limits &&
-                options.style === Style.DISPLAY) {
+                (options.style === Style.DISPLAY || base.alwaysHandleSupSub)) {
                 nodeType = "mover";
             } else {
                 nodeType = "msup";
@@ -225,7 +225,7 @@ defineFunctionBuilders({
         } else if (!group.sup) {
             const base = group.base;
             if (base && base.type === "op" && base.limits &&
-                options.style === Style.DISPLAY) {
+                (options.style === Style.DISPLAY || base.alwaysHandleSupSub)) {
                 nodeType = "munder";
             } else {
                 nodeType = "msub";
diff --git a/test/__snapshots__/mathml-spec.js.snap b/test/__snapshots__/mathml-spec.js.snap
index 42ac5c99..bcf33615 100644
--- a/test/__snapshots__/mathml-spec.js.snap
+++ b/test/__snapshots__/mathml-spec.js.snap
@@ -344,7 +344,7 @@ exports[`A MathML builder should output \\limsup_{x \\rightarrow \\infty} correc
 <math>
   <semantics>
     <mrow>
-      <msub>
+      <munder>
         <mo>
           <mi mathvariant="normal">
             lim sup
@@ -364,7 +364,7 @@ exports[`A MathML builder should output \\limsup_{x \\rightarrow \\infty} correc
             ∞
           </mi>
         </mrow>
-      </msub>
+      </munder>
     </mrow>
     <annotation encoding="application/x-tex">
       \\limsup_{x \\rightarrow \\infty}