Research IV Available without Maintenance III

Issue description

Please change the prequisite for Research IV to include Maintanace III (=DataCenter), otherwise Labs will breakdown all the time, without an easy fix.

Reproduction steps

Do not Research Data Center
Research: Research IV
Build Labs IV
Labs breakdown due to no Maintanance III
Unable to make Maintanance III
Cry and Wait ...

Game version and build number

v0.7.6

Operating system

Windows

Attachments

can't you just build a mainframe until you have your data center up?

can't you just build a mainframe until you have your data center up?

It's not about TF but maintanance. Lab 4 requires M3 but does not have it as direct dependency. While the information is there for player to read, it would make sense having it depend on the Data center research.

good point. another way would be to move M3 into microchips production.

This was fixed as part of v0.7.9. Thank you!