On opening the forum in my browser I was informed that my password had expired. I went to the appropriate account page, realised I couldn’t remember my password and used the ‘reset password’ feature.
On clicking the link in the subsequent email it sent me to a page on the forum that refused to show, instead telling me that my password had expired. That page helpfully took me to the appropriate account page to change my password, where I realised I couldn’t remember my password and made the conscious choice not to infinite loop.
Workaround: Select my name at the top and from the drop down menu choose Log Out. At that point the forum didn’t know who I was, didn’t know my password expired and so didn’t redirect the password reset link from the email.