Nope, Ali. All negative damage values won't work.
And actually, enchantments give it the glowing effect and you can't give it with Command Blocks. This fix is the exact opposite of a fix. Please find a solution to this!
Without the custom durabilities, it's breaking tons of maps. So please either get it back, or add a indestructible enchantment or tag ASAP. I really need this and tons of maps are unplayable now.
Will this ever be fixed? Will this feature be added again?! I really need it.
I totally agree with the suggestions. The custom damages are VERY important to us.