[GAMEPLAY] Trap Detection items allow Traps to briefly re-stealth

Lightbringer (and possibly Dominion's Twin Shadows) allows traps to go invisible for a split second after their usual revealed period is over.

In previous patches, this was fixed for Sweeping/Oracle's Lens, but it looks like it was never fixed on Trap Detection items.

Reproduction steps:

1. Buy Lightbringer
2. Have Teemo or Shaco place a shroom or box within range of of the Trap Detection passive.
3. Wait for the trap to stealth

Expected Result:

• The trap will stay revealed until you walk away or destroy it

Observed Result:

• The trap is hidden for a brief period, and comes back.

I have yet to test it for Twin Shadows, but I was able to reproduce it multiple times with Lightbringer.