ssh – gnome-keyring asks for a "no-name" key instead of a real name

Every time I try ssh on a server for the first time, a GUI popup prompts for the key password:

An application wants to access the private key "Unnamed", but it is blocked:

When we look at the processes, we see that you know very well what key you are asking for (the sysadmin key):

    2340? SLL 0:00 / usr / bin / gnome-keyring-daemon --daemonize --login
6660? S 0:00  _ / usr / bin / ssh-agent -D - /run/user/1000/keyring/.ssh
23894? Ss 0:00  _ / usr / bin / ssh-add /home/philippe/.ssh/sysadmin
23895? SL 0:00  _ / usr / lib / gcr / gcr-ssh-askpass Enter the access phrase for /home/philippe/.ssh/sysadmin:

Of course, I can enter my password, but without looking at the processes I have to guess which key is:

-rw ------- 1 philippe philippe 1.7K Jan 27 2015 id_rsa
-rw-rw-r-- 1 philippe philippe 10 Jan 27 2015 id_rsa.keystore
-rw-r - r-- 1 philippe philippe 407 January 27, 2015 id_rsa.pub
-rw ------- 1 philippe philippe 228K Nov 14 14:01 known_hosts
-rw ------- 1 philippe philippe 228K Nov 9 16:46 known_hosts.old
-rw ------- 1 philippe philippe 1.8K Jan 27 2015 support
-rw ------- 1 philippe philippe 381 January 27, 2015 support.pub
-rw ------- 1 philippe philippe 1.8K Jan 27 2015 sysadmin
-rw ------- 1 philippe philippe 381 January 27, 2015 sysadmin.pub

It could be the "support" or the "system administrator" key, but since the dialog box only shows "No name", I have to remember which server uses which one. I think I should show "sysadmin" or "support" instead of "Unnamed".

Here are some additional information:

philippe @ pv-desktop: ~ $ lsb_release -a
There are no LSB modules available.
Dealer ID: Ubuntu
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Code name: bionic

philippe @ pv-desktop: ~ $ uname -a
Linux pv-desktop 4.15.0-39-generic # 42-Ubuntu SMP Mar 23 de octubre 15:48:01 UTC 2018 x86_64 x86_64 x86_64 GNU / Linux

philippe @ pv-desktop: ~ $ gnome-keyring version
gnome-keychain: 3.28.0.2

I tried to use Sea Horse to see if there was a way to edit this information "Unnamed", but there is not.