Does Targeting Scanner Cause Energy Regeneration When You Attack?

[Smallie Biggs]

I specced the Targeting Scanner science perk and tested it out. It says "causes the party's attack against [marked enemy] to regenerate your energy." I didn't notice any effect on my energy when I attacked a marked enemy. Is the energy boost supposed to apply only to attacks of companions and not the player? Is it bugged? Or is the energy regeneration so slow that I didn't notice it?

[Smallie Biggs]

1.0.6.0 on PC