(A) Try to create a trigger prototype without a reference to item prototype. See trigger-prototype.png. The error message says:

"Trigger "trigger prototype without item prototype:

{13607}#1" does not have item prototype."

First, it should say "Trigger prototype ..." instead of just "Trigger". Second, it should provide a human-readable reference to the item, instead of "{13607}

".

(B) Try to edit an existing trigger and change its name so that pressing "Save" fails (for instance, the trigger becomes identical to another existing trigger). Pressing "Save" fails, which is good, but note that trigger name is back to the old value.