Construction Boost doesn't work on new items

The Basic Toolkit doesn't seem to be having any effect on build times for the first level new items.

With a level 7 Basic Toolkit, the build time for a Tapestry (level 21 unlock, expected to have an unreduced build time of 2h35m) is 2h35m instead of the expected 2h24m51s. After upgrading to a level 8 Basic Toolkit, the build time remains unchanged from 2h35m (if 2h35m had been reduced by 7%, it should have gone down to 2h33m33s). This is not merely a display issue; I have confirmed that the builds actually do take the displayed time.

Upgrading a level 1 Tapestry to level 2 with a level 8 Basic Toolkit shows a build time of 2h23m31s, as expected.