Vuetify: [Bug Report] Multiple v-dialog with v-btn cause infinite recursion errors

[mitsakosgr]

Environment

Vuetify Version: 2.0.5
Vue Version: 2.6.10
Browsers: Chrome 76.0.3809.100, Mozilla Firefox
OS: Windows 10

Steps to reproduce

Create a simple app with two persistent dialogs with a button inside each (buttons trigger the error).
Clicking the button (or focusing the dialog - for example a v-card) will cause an infinite loop of focusing.
Pressing Shift+Tab will cause this error to repeat.

Chrome will have an error:
Uncaught RangeError: Maximum call stack size exceeded.
at VueComponent.onFocusin (VDialog.ts:225)

Firefox will complain about too much memory usage and after a while will say about too much recursion.

Expected Behavior

No error

Actual Behavior

Uncaught RangeError: Maximum call stack size exceeded.
at VueComponent.onFocusin (VDialog.ts:225)

Reproduction Link

https://codepen.io/mitsakosgr/pen/MNPoKQ

Other comments

Setting retain-focus to false will prevent this error.

[MuizU]

I am encountering this exact issue when I remove <v-btn> s it goes away, and setting retain-focus didn't do any good.

[KaelWD]

setting retain-focus didn't do any good

:retain-focus="false" does

I'm reverting this because it has an easy workaround and broke the original behaviour.