If one uses the beta version and wants to go back to production version they'll get redirected to the home page. I'd expect to be redirect to the page I was previously on.

I'm on https://beta.musicbrainz.org/user/chaban and want to quit using the beta version.
Following the "Stop using beta site" link triggers this excerpt of requests and redirects:

Request URL: https://musicbrainz.org/set-beta-preference
Request Method: GET
Status Code: 302 
[...]
location: https://musicbrainz.org/?unset_beta=1
[...]
referer: https://musicbrainz.org/user/chaban

Request URL: https://musicbrainz.org/?unset_beta=1
Request Method: GET
Status Code: 200 
[...]
referer: https://musicbrainz.org/user/chaban
[...]

If I now wanted to get back to the page I was previously I could simply use my browser's back button but would then end up on the beta domain again.