From f887c43206ed97d9fe1ab94b943aabb72e094bf4 Mon Sep 17 00:00:00 2001
From: Sebastian Silbermann <silbermann.sebastian@gmail.com>
Date: Tue, 12 Mar 2019 19:04:33 +0100
Subject: [PATCH 1/3] Remove untested condition

---
 src/Transition.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Transition.js b/src/Transition.js
index a12cf71f..5f4b1ac8 100644
--- a/src/Transition.js
+++ b/src/Transition.js
@@ -313,7 +313,7 @@ class Transition extends React.Component {
     this.setNextCallback(handler)
 
     const doesNotHaveTimeoutOrListener = timeout == null && !this.props.addEndListener
-    if (!node || doesNotHaveTimeoutOrListener) {
+    if (doesNotHaveTimeoutOrListener) {
       setTimeout(this.nextCallback, 0)
       return
     }

From 84f951ad49c2a19284df1fa21400ee5ba4f9b4e3 Mon Sep 17 00:00:00 2001
From: Sebastian Silbermann <silbermann.sebastian@gmail.com>
Date: Tue, 12 Mar 2019 19:04:48 +0100
Subject: [PATCH 2/3] Only call findDOMNode if necessary

---
 src/Transition.js | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/Transition.js b/src/Transition.js
index 5f4b1ac8..2c65e744 100644
--- a/src/Transition.js
+++ b/src/Transition.js
@@ -209,7 +209,7 @@ class Transition extends React.Component {
     if (nextStatus !== null) {
       // nextStatus will always be ENTERING or EXITING.
       this.cancelNextCallback()
-      const node = ReactDOM.findDOMNode(this)
+      const node = this.needsNode() ? ReactDOM.findDOMNode(this) : null;
 
       if (nextStatus === ENTERING) {
         this.performEnter(node, mounting)
@@ -327,6 +327,19 @@ class Transition extends React.Component {
     }
   }
 
+  needsNode() {
+    return [
+      'addEndListener',
+      'onEnter',
+      'onEntering',
+      'onEntered',
+      'onExit'
+    ].some(callbackName => {
+      const callback = this.props[callbackName];
+      return callback && callback.length > 0
+    })
+  }
+
   render() {
     const status = this.state.status
     if (status === UNMOUNTED) {

From 9e41fc11a772ae18c28e166a2f21a0c6a23acbf2 Mon Sep 17 00:00:00 2001
From: Sebastian Silbermann <silbermann.sebastian@gmail.com>
Date: Thu, 11 Apr 2019 15:00:05 +0200
Subject: [PATCH 3/3] test(ci): Run on strict branch

---
 .travis.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.travis.yml b/.travis.yml
index b101baa1..2f9ced30 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,3 +12,4 @@ after_success:
 branches:
   only:
     - master
+    - strict