query: fix missing operator attribute on Query objects

portage.dep.Atom now uses __slots__ and exposes operator as a read-only
@Property backed by _operator, so it no longer appears in atom.__dict__.
Query.__init__ copies atom.__dict__ into self but never picked up
operator, same gap already patched here for cpv, _version, and _cp.
Dependencies (a Query subclass) then lacked .operator entirely, crashing
equery d with AttributeError when Atom.intersects() compared against it.

Bug: https://bugs.gentoo.org/981521
Signed-off-by: Matt Turner <mattst88@gentoo.org>

Author: mattst88

pym/gentoolkit/query.py

@@ -68,6 +68,10 @@ def __init__(self, query, is_regex=False):
                 for _attr in ("_version", "_cp"):
                     if _attr not in self.__dict__:
                         setattr(self, _attr, None)
+                # gentoolkit.atom.Atom's operator is a read-only @property,
+                # never a plain instance attribute, so it's never in
+                # atom.__dict__ either.
+                self.operator = atom.operator
             except errors.GentoolkitInvalidAtom:
                 CPV.__init__(self, self.query)
                 self.operator = ""