I was searching for an issue in Youtrack before I created a new one because I was frustrated that IDEA needs to associate files as text before it will diff them.
Turns out that I had already put in the issue myself 15 months ago!
Anyway, as part of the search I came across these issues which seem to be duplicates:
However, when I try to do Link -> duplicates and put in an issue id I get the following error:
"Can't submit incorrect command"
What does that mean? ?:|