Hi! I was logging in to a site, used Cmd+\ to autofill the credentials, and 1Password warned me that the password was too weak. I held Option, and verified that it was weak indeed. So I clicked on Edit, then on the gear icon by the password field, copied the generated password (20 in length, 1 digit and 1 symbol) and pasted it into the "new password / repeat new password" fields on the site and submitted the password change. 1Password extension asked me if I wanted to update the saved login details for this site, I selected the correct entry (I have 3 logins for this site).
Since I had the popup open for this site (and in Edit mode, which I used to generate a new password), I canceled the edit.
Then I used Ctrl+\ to open 1Password Mini to double-check the password change was sucessfully saved. The password was correctly saved, but 1Password mini is still warning me that about Weak Password, but it's not weak anymore.
I'm never sure of the best workflow for password changes like this, maybe my workflow is unusual, but it seems like I found a bug in 1Password Mini.
I'm running 1Password 7
Version 7.6 (70600006)
Mac App Store