Usually if you buy a crafting spec you already own, the vendor takes your money but you don't end up with duplicate specs.
Target Analysis is different.
I bought one at Buck's. Then a second at Instant Implants.
Both function and identically.
The potentially interesting thing is - for everyone keen for a fix for the accursed and I've read yet unfixed legendary clothing vendor bug - when testing this bug I discovered a similar thing here. Target Analysis only spawns at Instant Implants on first visit. Both after buying the 2nd TA or not, afterwards he only sells the other crafting specs. I couldn't get TA to appear again.
I haven't updated to 1.2 yet so maybe they've fixed it, but I also couldn't find anyone else reporting this bug online. And if it's related to the leg clothing spec bug it could still be active.
I've also submitted a bug report directly to CDPR with screens and save files.
Target Analysis is different.
I bought one at Buck's. Then a second at Instant Implants.
Both function and identically.
The potentially interesting thing is - for everyone keen for a fix for the accursed and I've read yet unfixed legendary clothing vendor bug - when testing this bug I discovered a similar thing here. Target Analysis only spawns at Instant Implants on first visit. Both after buying the 2nd TA or not, afterwards he only sells the other crafting specs. I couldn't get TA to appear again.
I haven't updated to 1.2 yet so maybe they've fixed it, but I also couldn't find anyone else reporting this bug online. And if it's related to the leg clothing spec bug it could still be active.
I've also submitted a bug report directly to CDPR with screens and save files.