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IZ
EB
BK
EB
IP
BK
BK
RV
EB
RV
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has_many :accessible_projects, through: :groups, source: :projects
gems/state_machines-0.5.0/lib/state_machines/assertions.rb:18:in `block in assert_valid_keys':
Unknown key: :source. Valid keys are: ...IZ
IZ
RP
RP
IZ