depgraph: fix missed atom_not_selected initialization (bug 612846)

Fix the _slot_operator_update_probe method to ensure that the
atom_not_selected variable is always properly initialized. This
problem prevented the method from identifying slot operator rebuild
candidates, leading to dependency conflicts and/or missed updates.
For example, this may have triggered the missed llvm update reported
in bug 611742, since these dependencies from the mesa-17.0.1 ebuild
are capable of triggering the problem, when atom_not_selected is not
properly set to True for the second atom:

	|| (

X-Gentoo-bug: 612846
Acked-by: Brian Dolbec <>
1 file changed