Sparks can trample lightsticks

## Testmerges
#9590: 'Multi Z Almayer [MDB IGNORE]' by spartanbobby at commit f4dd5251a9
#9427: 'external authentication system' by hry-gh at commit be1078f66e
#9493: 'The Overthrall & Blooded Thralls' by MeH0y at commit 25732516f0
#8878: 'Whiskey Outpost Xenofication' by Unknownity at commit d90e311487
#8570: 'Sexier Sprites & The Soulening of Spitting' by BasilHerb at commit 759e657aa6

## Round ID
28574

## Description of the bug
Sparks can trample lightsticks

## What's the difference with what should have happened?
Sparks should not be able to trample lightsticks.

## How do we reproduce this bug?
1) Create lightsticks
2) Create source of sparks
3) Have sparks move over lightsticks (may take several tries)

## Attached logs
```
The Geothermal Water Marshes APC's wires snap apart in a rain of sparks!
Elder Warrior (PU-505-MA) tramples the blue lightstick!
The sparks tramples the blue lightstick!
```

## Additional details
- Author: Drawsstuff
- Admin: Pandaintoast
- Note: None