TechnologyManager produces errors in Atlas under obscure conditions

[vts]

To reproduce:

• Start Atlas on a blank map and place a civil center owned by Gaia
• Go to the Player tab and set the number of players to 7 (anything less than 8 seems to trigger it)
• Start the simulation, click OK on the defeated dialog and reset the simulation again
• Select the civil center, go to the Object tab and set Player 1 as its owner

This produces the following:

WARNING: JavaScript warning: simulation/components/TechnologyManager.js line 201 reference to undefined property "structures/celt_civil_centre"
WARNING: JavaScript warning: simulation/components/TechnologyManager.js line 215 reference to undefined property "Structure"
WARNING: JavaScript warning: simulation/components/TechnologyManager.js line 219 reference to undefined property this.typeCountsByClass[classes[i]]
ERROR: JavaScript error: simulation/components/TechnologyManager.js line 219 TypeError: this.typeCountsByClass[classes[i]] is undefined ([object Object])@simulation/components/TechnologyManager.js:219
ERROR: Script message handler OnGlobalOwnershipChanged failed