Mirage Archer and Barrage interact to Create Incorrect Tooltips

• What happened?
  DPS Delta tooltips for activating support gems or added damage auras were incorrect while both Mirage archer and Barrage Support were linked to the main skill, but were correct when either of those supports were deactivated.
• What were you trying to do?
  Decide which auras and support gems to use.
• What steps will reproduce the bug?
  Open this pastebin: https://pastebin.com/YUxmxiXj
  -Hover over the "Enabled" checkbox for Added Lightning Damage or Herald of Thunder
  -Observe that in the hover tooltip "Mirage DPS" % gain is much higher than the Total DPS % gain, when they should be identical +/- rounding
  -Actually check one of those boxes, observe that the combined DPS increased by less than the tooltip said it would (reflecting the correct gain in Mirage Archer damage)
  -De-activate either Mirage Archer or Barrage Support and repeat above, note that there is no such issue.
• Does it reproduce every time?
  Yes
• Provide a build code:
  https://pastebin.com/YUxmxiXj

Start by loading the linked Pastebin build and reproducing the tooltip mismatch with Mirage Archer and Barrage Support both active. Compare the hover preview for Added Lightning Damage or Herald of Thunder with the actual DPS change, then repeat with either support deactivated. Done means Mirage DPS and Total DPS show the same gain, apart from rounding.