Cavalry Master gives itself also a 2nd instance of flanking.

Describe the Bug:
Cavalry Master gives itself also a 2nd instance of flanking.
Which card did behave improperly?
Cavalry Master
Which update are you using? (date, name)Which type? (duel, gauntlet, sealed deck)
Manalink dev 778ccb5 version - duel
What exactly should be the correct behavior/interaction?
Cavalry Master gives other creatures you control with flanking extra flanking.
Are any other cards possibly affected by this bug?
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Cavalry Master gives itself also a 2nd instance of flanking.
Which card did behave improperly?
Cavalry Master
Which update are you using? (date, name)Which type? (duel, gauntlet, sealed deck)
Manalink dev 778ccb5 version - duel
What exactly should be the correct behavior/interaction?
Cavalry Master gives other creatures you control with flanking extra flanking.
Are any other cards possibly affected by this bug?
-