Project A depends on jar from project B, after buildilng B, A loses cache

Hello Travis,

I have tried the same in M2 and have not met this bug. My project layout is:
... /super-dir/project-a/project-a.ipr, project-a.iml, src/**
... /super-dir/project-a.jar (built of project-a classes)
... /super-dir/project-b/project-b.ipr, project-b.iml, src/** (uses project-a.jar)

Changed something in implementation of project-a, rebuilt project-a.jar,
return to project-b, synchronize - no problems...

Although sometimes ago I met such bug, when different EAP builds (somewhat
like 7051 and 7087) used the same caches in user.home/.IntelliJIdea70/system.
Building new caches for the latest EAP build helped.

Sorry about the confusing subject, don't get much space to write in
the subjects in these forums.

Anyways, here's the full description:

If Project A depends on jar from project B, then you rebuild project
B, the cache (or something) from Project A for that particular jar is
lost. So everything is red and Idea says it "Cannot resolve..."

This wasn't a problem in last weeks build, appears to be a regression
in M2.

Alexander.