From ed8a8d3c3718c4f97ea2c793f83a7190795cc2aa Mon Sep 17 00:00:00 2001
From: "Tanner W. Stokes" <tanner@tannr.com>
Date: Thu, 30 Jun 2022 09:36:01 -0400
Subject: [PATCH 1/3] Don't process renderer output if there's no delegate.

---
 Classes/Rendering/Renderer.swift | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Classes/Rendering/Renderer.swift b/Classes/Rendering/Renderer.swift
index 01b45b692..1a8ec119b 100644
--- a/Classes/Rendering/Renderer.swift
+++ b/Classes/Rendering/Renderer.swift
@@ -163,6 +163,8 @@ final class Renderer: Rendering {
     /// For this to work, all access to filteredPixelBuffer should be locked, so this method should be called in
     /// a synchronized(self) block.
     private func output(filteredPixelBuffer: CVPixelBuffer) {
+        guard let delegate = self.delegate else { return }
+
         self.filteredPixelBuffer = filteredPixelBuffer
         callbackQueue.async {
             let pixelBuffer: CVPixelBuffer? = synchronized(self) {
@@ -173,7 +175,7 @@ final class Renderer: Rendering {
                 return pixelBuffer
             }
             if let filteredPixelBuffer = pixelBuffer {
-                self.delegate?.rendererReadyForDisplay(pixelBuffer: filteredPixelBuffer)
+                delegate.rendererReadyForDisplay(pixelBuffer: filteredPixelBuffer)
             }
         }
     }

From dd7b104b25c6030a53af787eafdb3dfa89efb9c5 Mon Sep 17 00:00:00 2001
From: "Tanner W. Stokes" <tanner@tannr.com>
Date: Thu, 30 Jun 2022 09:41:31 -0400
Subject: [PATCH 2/3] Bump spec version.

---
 Kanvas.podspec | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Kanvas.podspec b/Kanvas.podspec
index cf1ad616b..904ff71f4 100644
--- a/Kanvas.podspec
+++ b/Kanvas.podspec
@@ -2,7 +2,7 @@
 
 Pod::Spec.new do |spec|
   spec.name         = 'Kanvas'
-  spec.version      = '1.4.2'
+  spec.version      = '1.4.3'
   spec.summary      = 'A custom camera built for iOS.'
   spec.homepage     = 'https://github.com/tumblr/kanvas-ios'
   spec.license      = 'MPLv2'

From b699ec6210c903c86bd47bdf7c511711c42bf8dc Mon Sep 17 00:00:00 2001
From: "Tanner W. Stokes" <tanner@tannr.com>
Date: Thu, 30 Jun 2022 10:23:18 -0400
Subject: [PATCH 3/3] Reload the current editor on export.

---
 .../Editor/MultiEditor/MultiEditorViewController.swift    | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Classes/Editor/MultiEditor/MultiEditorViewController.swift b/Classes/Editor/MultiEditor/MultiEditorViewController.swift
index a6731b19b..57c0f6b0c 100644
--- a/Classes/Editor/MultiEditor/MultiEditorViewController.swift
+++ b/Classes/Editor/MultiEditor/MultiEditorViewController.swift
@@ -387,12 +387,14 @@ extension MultiEditorViewController: EditorControllerDelegate {
                 editor.export { [weak self, editor] result in
                     let _ = editor // strong reference until the export completes
                     self?.exportHandler.handleExport(result, for: idx)
-                    if let selected = self?.selected {
-                        self?.loadEditor(for: selected, current: false)
-                    }
                 }
             }
         })
+
+        if let selected = self.selected {
+            loadEditor(for: selected, current: true)
+        }
+
         return false
     }