Maybe they are reverting back to hardneck. I have heard of it. I have had Artichoke types grow the stem bulbils before but never actually send up a true scape.

If/when you harvest them it would be interesting if they actually have a hard neck.

This year all 42 or so of my California Early plants (Artichoke, Softneck) produced scapes. I've been growing this variety and replanting my own stock for eight years. First time I've ever had more than one or two scapes. None of my other varieties produced scapes this year-Early Red Italian (Artichoke), Mild French (Silverskin) and Cuban Purple (Creole). Cuban Purple usually does produce scapes for me.

I'm in the northwest Texas (USDA Hardiness Zone 7b; AHS Heat Zone 9). The winter was very mild, only two nights below 20 and only four days that the temp remained below freezing all day. The spring was the earliest I've ever seen.

The scapes produced lots of bulbils. Would they be useful for planting as garlic greens?

Here is a a photo.

Small cloves produce better greens than what are generally tiny bulbils.

Better to always cut off the scapes pretty much regardless of whether the variety is hardneck or softneck. Always better bulb size when you do that, - well - almost always anyway.

Softnecks (two types - Artichokes and silverskins) may bolt, but they are called softnecks because they very seldom ever do. But that doesn't mean they won't, although there is probably no forecasting just when it will happen.

Hardnecks (8 types all seemingly more primitive that the softnecks and do not keep as well) will almost always bolt, although there is an intermediate group that they now put with the regular hardnecks called weakly bolting hardnecks (Turbans and Asiatics) which may or may not. The semi-woody flower stem produces the "hardneck" making them completely unsuitable for braiding.

No bolt - no "hardneck", even if the variety is officially a hardneck, and that reverse happens sometimes, too.

In the US generally hardnecks do better in the North and softnecks in the South. Exceptions to this vary from grower to grower, and are quite common. Generally Creoles are one of the exceptions doing generally much better in the South, even when they regularly or commonly bolt.