If supplies didn't but supplies do. The fact that supplies didn't fully fix a GV after patch 4 was a bug, it's been fixed in patch 5.ack-ack
Maybe it's just me, but I kinda liked it when your couldn't be repaired in the field. Now we're back to - ow, there goes my turret...click resupply..fire...ow there goes my turret....click resupply...fire...........