Disable https requests to ssh git remotes

My WebStorm project uses an ssh git remote of the form

ssh://myusername@myserver/repos/myproject.git

and this works because I have an entry in my ~/.ssh/config defining myserver. (This points to a simple VPS that I own, where I back up my projects.)

The problem is that every time I open my project, WebStorm makes a request to https://myserver:443, which (for reasons detailed below) results in WebStorm complaining about an untrusted certificate.

I would like to tell WebStorm to stop making this https request to myserver.

What's going on

Following https://intellij-support.jetbrains.com/hc/en-us/community/posts/360010617059-Untrusted-Server-Certificate-Warning-Message?page=1#community_comment_360003021440, I added the suggested lines to the debug log settings, and found lines like this:

2023-11-01 11:43:27,664 [93413912]   FINE - #c.i.u.p.CommonProxy - CommonProxy.select called for https://myserver:443

in the WebStorm log.

I have used my setup for years with no problem, but I just got a new WiFi router made by Sagemcom, which for some reason resolves requests to https://myserver:443 to point to itself, i.e. to 192.168.1.1 and it serves up its own, self-signed, expired certificate, which makes WebStorm (quite reasonably!) complain about the untrusted cert. If e.g. I use my cell phone's hotspot instead of my new router, the problem goes away. But that's not an acceptable solution.

Unacceptable solutions

This post https://intellij-support.jetbrains.com/hc/en-us/community/posts/4414137297810-Disable-GIT-remote-access- suggests going into Settings > Version Control > Directory Mappings, and removing the project directory altogether. That's unacceptable, because I want all the other features, like highlighting of modified lines, etc.

Failed solutions

I tried every possible setting on the “Explicitly check for incoming commits on remotes” dropdown, under Settings > Version Control > Git, but none of these solved the problem.

Workaround

My current workaround is to add an entry in my /etc/hosts making myserver resolve to the 127.0.0.1 loopback. This works, as long as I'm not serving anything on 443 on my machine. WebStorm is unable to connect when it requests https://myserver:443, and evidently it's happy enough to just fail silently. Fine. But if I'm testing a server on port 443 on my machine, this workaround will fail.

Desired solution

If there's an existing, simple solution to this problem, please let me know! Otherwise, I think it would be reasonable to have a way to tell WebStorm that a given ssh remote is simply not going to respond to the https request it wants to make (whatever that request is for).