[General] updates shared between players WCIII 1.27b

[diosdadolinares5]

"Hello everyone! I'm new here and usually don't participate much in the forum, but today I decided to raise a question about an issue I haven't been able to solve. The issue in question is the research of technologies shared between allies (players). My goal is to make it so that when a player finishes an upgrade (for example, Bladed Swords I), all of his allies will also receive that upgrade. So far so good, what I want is that when starting and carrying out the research, allies can't do it too. To avoid the loss of resources for the allies. It's a seemingly insignificant detail, but it doesn't quite convince me.