Health of foundation jumps when work is resumed

[zoot]

Steps to reproduce:

1. Begin building something near an enemy tower and get it up to about 50% health.
2. Move the worker(s) away from the foundation, so the enemy tower begins firing at the foundation.
3. When the enemy tower has hit a couple of times, let the worker(s) resume work on the foundation.

What happens:

The health of the foundation "jumps" several points, just by workers resuming construction.

It's a bit difficult to illustrate, but the above two frames were shot before and instantly after a worker resumed work on a foundation. As one can hopefully tell, the HP of the foundation jumps several points here, whereas it normally increases slowly (pixel by pixel) when being constructed.

[zoot]

Shot before and just after a worker resumes work on a foundation