Backport of #14648 (#15032)

atom/browser/native_window_views.cc

@@ -585,6 +585,7 @@ void NativeWindowViews::SetResizable(bool resizable) {
     // both the minimum and maximum size to the window size to achieve it.
     if (resizable) {
       SetContentSizeConstraints(old_size_constraints_);
+      SetMaximizable(maximizable_);
     } else {
       old_size_constraints_ = GetContentSizeConstraints();
       resizable_ = false;

spec/api-browser-window-spec.js

@@ -2394,9 +2394,15 @@ describe('BrowserWindow module', () => {
       // Only implemented on windows.
       if (process.platform !== 'win32') return
 
-      it('is set to false when resizable state is set to false', () => {
+      it('is reset to its former state', () => {
+        w.setMaximizable(false)
         w.setResizable(false)
+        w.setResizable(true)
         assert.equal(w.isMaximizable(), false)
+        w.setMaximizable(true)
+        w.setResizable(false)
+        w.setResizable(true)
+        assert.strictEqual(w.isMaximizable(), true)
       })
     })