I have 2 WordPress sites, SiteA.com and SiteB.com.
I was looking for a way to make it so clicking on the main logo of SiteB.com brought people to SiteA.com.
In my experimenting, from the admin login of SiteB.com I went to Settings > General and changed:
WordPress Address (URL)
Site Address (URL)
To the address of my SiteA.
Immediately my admin login of SiteB became the admin login of SiteA, and now nothing I try will let me log back in to SiteB to change those settings back.
Is there a file somewhere I can edit to get my site back?