git client erroneously downloads files when --filter=blob:none and filtering unsupported

The git client, in my opinion, erroneously downloads files when --filter=blob:none is specified and the server does not support filtering. I created a related question on this before coming here:

https://stackoverflow.com/q/79413099/15534181

Instead of giving a warning, it should instead error and exit. From a user perspective, when I request "don't pull down the file contents" and it does it anyway under some circumstances, this is unexpected. In my case it caused performance degradations on a repo scanner.

I propose something like this:

https://github.com/jagprog5/git/commit/c4bd8c9640c1491dc6e23acf31fa0230485b68b1

This is not backwards compatible. My question is, how best should this be handled? Is this breaking change ok? Or should there instead be a new CLI arg or config which enabled this new behaviour. Looking for advice, thanks.