I know we are supposed to have finished testing the alpha campaign, but due to bug #11635 I was going over it again and I found this:

When I was playing Alpha 6 I thought I noticed a missed bug (I was wrong, false alarm)
So I saved the game in progress as Alpha 6 In Progress, and loaded previous save Alpha 6 Start. (Which was saved on the completion screen of the previous mission.)

I found that the research icon was flashing, even though there should have been NO available research, (All available research was completed before completion of the previous mission),

I found that Mini-pod Rockets were avaliable to research, Even though the artifact for them had not been recovered yet. (it is recovered from the scav base in the south-eastern corner in Alpha 6.)

I then restarted WZ2100 loaded the Alpha 6 In Progress save and then loaded the Alpha 2 Start save. I found that ALL research was enabled as if I had collected All the artifacts from Alpha 2 upto the mini-pod rockets artifact in Alpha 6.

Further testing finds this applies when loading, example: load the Alpha 6 In Progress save, obtain the "tracked propulsion" Artifact from the factory to the north-west of where the 1st scav. base was and then load the Alpha 6 In Progress save again. Tracked Propulsion should now be available to research, despite the fact that the artifact should not have been recovered yet.

An archive containing the savegames I have referred to is attached