Handle when multiple packages embed the same package #1102
Merged
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The solver was panicking with "state not found" in the case where it encounters a package that embeds some other package, but that other package has already been embedded by some third package. It wanted to "eject" the real package (again) but no "real" package was in the solution at that point.
Now it checks that the package it wants to "eject" is a not an embedded package. This situation was given its own
IncompatibleReason
so the solver output will detail the packages involved.