[1.1.107] Laggy upgrade planner

[UpsideDownEye]

It started when i installed the merging chests mod, now it could be any mod here, all that matters is there are a ludicrous amount of upgrade possibilities. i opened my upgrade planner expecting there to only be lag if i clicked on the tab with millions of possible upgrades. the exact step this happens on is when i open the tab for selecting a thing to upgrade into if nothing is in the first slot or vice versa being nothing in second slot and click on first slot. the lag happens when changing tabs too. for easiest testing i'd reccomend merging chests, merging chests unlimited, and merging chests logistic and just crank the numbers to as high as you can while making sure factorio still loads.

[Rseding91]

Thanks for the report. This is now fixed for 2.0.