Why lose shield on death in firing range?

I've noticed during combat mode in the firing range you lose your shield now upon death.  Doesn't this defeat the purpose of the firing range since it makes it that much harder to practice now?  Is this just a bug or is this a permanent change?  I liked it better when I could put the dummies on combat mode and retain my shield no matter how many times I die.  Even the br modes like pubs and ranked are more forgiving than this since you get your shield when revived.  I don't understand the reason for this.

Anyone know a workaround where you can keep your shield when dying in the firing range like it used to be?