Click on alpha texture detection

Started to have problems with HUDs. A recent change in the way the client detects touches on texture with alphas now makes it so of you click on a clear part of a button you don't touch that prim but the touch the prim behind it. This has kind of screwed up the way may of my HUD systems work. I'm not sure how clear the textures has to be as to not be clicked on yet.

Setting a texture to 100% Alpha thru a script still allows you to click on it. But a 100% alpha texture and not be clicked on.

Probably an attempt to make invisible HUDs click-throughable.

Obviously something went wrong.

That's an... interesting arrangement. I would have thought it would be the other way around. Sounds accidental, in fact. Have you bug-reported it.

I can see where what LL is going for with the feature.

However, I really think it should be a preference on the prim whether to obey this feature or not..
I have a texture vendor, which changes itself to display the texture for sale. One of them is highly alpha-ish, but has opaque lines.
I don't want people to be forced to click on just the right spot on it for one of the textures.
I guess I could redesign my vendor to work around it.

I had a fully-alpha prim covering a side, so one can browse forwards or back. I changed it to a 90% transparent prim.. I guess I could just use 100% via scripting.

I'm tempted to bug report this, yet.. *hesitates* It's.. not exactly a bug, the way I see it behaving. It is kind of working how one might expect visually.. ehh. But not in a classical SL click behavior sense..
If there was just a preference on the prim for it, I'd be happy. I can definitely see the way it is at the moment having some good uses.

This behavior has been around for at least 6 months.