Need to select server twice to log in

[realpixelcode]

1. Type social.tchncs.de into the search bar. The in-app browser opens the login form.
2. Log into your profile.
3. Still within the in-app browser, you're redirected to the home timeline instead of being asked to authorise the Mastodon app.
4. Manually close the in-app browser.
5. Re-enter social.tchncs.de into the search bar.
6. The in-app browser finally displays the authorisation page.

[realpixelcode]

Another user privately confirmed me that he had the same issue recently.