Siege raid causes lag spikes if WorkTab is loaded

[Kopp35345]

Describe the bug
Not a real bug I guess.
If WorkTab is active and there is a siege a prefix causes large amounts of lag at a certan stage of the siege (when they placed the blueprints and do building stuff).
I could not find someone else reporting this... So it might be a fail on my side... But I tested it with different RW versions and different WorkTab versions.

Expected behavior
I do not expect anything but it would be nice if there would be no noticeable lag.

Steps to reproduce

1. Load RW with at least WorkTab (Dubs Peformance Analyzer would be useful, too)
2. Use the devMode to force a siegeRaid, use 10k raid points.
3. Wait until the raid group is placing the blueprints and start building.
4. Notice that the game stutters.

Other mods
Nope, can be recreated with Harmony+WorkTab

Output log
https://gist.github.com/3d2888ab874f08b65205c46de7b287ac

Save game
As only WorkTab is needed to recreate the lag I do not provide a savegame.

Screenshots
see below

Environment

• OS: Win10
• x64

Game

• 64 bits
• DRM free
• RimWorld 1.3.3200 rev726 or 1.3.3287