Fix restart behavior for "Restart and Install Update" on macOS

src/main-process/atom-application.js

@@ -91,6 +91,7 @@ class AtomApplication extends EventEmitter {
   constructor (options) {
     super()
     this.quitting = false
+    this.quittingForUpdate = false
     this.getAllWindows = this.getAllWindows.bind(this)
     this.getLastFocusedWindow = this.getLastFocusedWindow.bind(this)
     this.resourcePath = options.resourcePath
@@ -384,6 +385,7 @@ class AtomApplication extends EventEmitter {
 
     this.on('application:install-update', () => {
       this.quitting = true
+      this.quittingForUpdate = true
       this.autoUpdateManager.install()
     })
 

src/main-process/atom-window.js

@@ -148,7 +148,7 @@ class AtomWindow extends EventEmitter {
 
   handleEvents () {
     this.browserWindow.on('close', async event => {
-      if (!this.atomApplication.quitting && !this.unloading) {
+      if ((!this.atomApplication.quitting || this.atomApplication.quittingForUpdate) && !this.unloading) {
         event.preventDefault()
         this.unloading = true
         this.atomApplication.saveCurrentWindowOptions(false)