From ff4e2fb65b68b711e0ec2f1b072dbac52edd5c16 Mon Sep 17 00:00:00 2001
From: Daniel LaLiberte <dlaliberte@google.com>
Date: Sat, 2 Dec 2023 16:54:27 +0000
Subject: [PATCH] Return undefined when numeric field is empty string.

---
 client-src/elements/utils.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/client-src/elements/utils.js b/client-src/elements/utils.js
index a4f371875542..ce5bdbeda6f0 100644
--- a/client-src/elements/utils.js
+++ b/client-src/elements/utils.js
@@ -387,12 +387,14 @@ export function checkMilestoneStartEnd(startEndPair, getFieldValue) {
   const getValue = (name) => {
     const value = getFieldValue(name);
     if (typeof value === 'string') {
+      if (value === '') return undefined;
       return Number(value);
     }
   };
   const {start, end} = startEndPair;
   const startMilestone = getValue(start);
   const endMilestone = getValue(end);
+  console.info(`after getValue: start: ${startMilestone} end: ${endMilestone}`);
   if (startMilestone != null && endMilestone != null) {
     if (endMilestone <= startMilestone) {
       return {error: 'Start milestone must be before end milestone'};