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a/Allura/allura/lib/security.py b/Allura/allura/lib/security.py
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            while to_visit:
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            while to_visit:
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                (rid, role) = to_visit.pop()
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                (rid, role) = to_visit.pop()
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                if rid in visited: continue
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                if rid in visited: continue
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                yield role
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                yield role
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                pr_index = self.cred.project_roles(role.project_id).index
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                pr_index = self.cred.project_roles(role.project_id).index
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                if rid in pr_index:
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                for i in pr_index[rid].roles:
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                    for i in pr_index[rid].roles:
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                    if i in pr_index:
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                        if i in pr_index:
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                        to_visit.append((i, pr_index[i]))
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                            to_visit.append((i, pr_index[i]))
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        return RoleCache(self.cred, _iter())
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        return RoleCache(self.cred, _iter())
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    @LazyProperty
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    @LazyProperty
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    def reaching_ids(self):
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    def reaching_ids(self):
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        return [ r._id for r in self.reaching_roles ]
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        return [ r._id for r in self.reaching_roles ]