This indeed appears to be a duplicate of #1271591. I checked the value of SSH_AUTH_SOCK
When prompted in terminal: $ echo $SSH_AUTH_SOCK /tmp/ssh-m3uUUZCXI6xj/agent.2567
When prompted by gnome-keyring ~$ echo $SSH_AUTH_SOCK /run/user/1000/keyring-ABCDef/ssh
This indeed appears to be a duplicate of #1271591. I checked the value of SSH_AUTH_SOCK
When prompted in terminal: m3uUUZCXI6xj/ agent.2567
$ echo $SSH_AUTH_SOCK
/tmp/ssh-
When prompted by gnome-keyring 1000/keyring- ABCDef/ ssh
~$ echo $SSH_AUTH_SOCK
/run/user/