At this point, it sometimes selects all the objects in the form
Maybe I just didn’t try hard enough, but I couldn’t get it to ever do this. It always only selected the text in the property field.
All the text in ALL the formulas for ALL the objects is deleted!!
I’m guessing you left out a step - you probably pressed the DELETE key for this to happen?
Nevertheless, I could not duplicate this. For me, only the text in the formula field property was deleted, and also I could Undo without any problem.
I tried it about a dozen times without any problem, then I got bored.
Start editing the formula
I am assuming this means click on the formula. That’s what I did. I don’t think there is any other way to start editing the formula, but let me know if you did something different.
If I don’t click on the formula, then pressing Command-A select all objects, and the Delete deletes all the objects. Not just the formulas, the entire objects are deleted. But Undo will bring them back.
Or am I just “lucky”?
Well I don’t know about your luck, but I am puzzled.