From 7e5ae940e2f43364320e449884e942b1dc8ad7ee Mon Sep 17 00:00:00 2001
From: Andrew Harvey <andrew@alantgeo.com.au>
Date: Fri, 11 Oct 2019 18:08:46 +1100
Subject: [PATCH] flow is very picky

---
 src/geo/transform.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/geo/transform.js b/src/geo/transform.js
index f1687509188..25fe5c948a8 100644
--- a/src/geo/transform.js
+++ b/src/geo/transform.js
@@ -61,8 +61,8 @@ class Transform {
         this._minZoom = minZoom || 0;
         this._maxZoom = maxZoom || 22;
 
-        this._minPitch = minPitch === undefined ? 0 : minPitch;
-        this._maxPitch = maxPitch === undefined ? 60 : maxPitch;
+        this._minPitch = (minPitch === undefined || minPitch === null) ? 0 : minPitch;
+        this._maxPitch = (maxPitch === undefined || maxPitch === null) ? 60 : maxPitch;
 
         this.setMaxBounds();