From 0dfd1cf9fc9906f34eb7e4d4f99a1cced09d9c02 Mon Sep 17 00:00:00 2001
From: Ben Wheeler <wheeler.benjamin@gmail.com>
Date: Thu, 17 Oct 2019 23:34:31 -0400
Subject: [PATCH] added comment about setting initial state

---
 src/components/join-flow/join-flow.jsx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/components/join-flow/join-flow.jsx b/src/components/join-flow/join-flow.jsx
index 387b37036..b3139677c 100644
--- a/src/components/join-flow/join-flow.jsx
+++ b/src/components/join-flow/join-flow.jsx
@@ -36,6 +36,9 @@ class JoinFlow extends React.Component {
             step: 0,
             waiting: false
         };
+        // it's ok to set state by reference, because state is treated as immutable,
+        // so any changes to its fields will result in a new state which does not
+        // reference its past fields
         this.state = this.initialState;
     }
     canTryAgain () {