"Butterfly" deformity on red bud

I collected these deformed leaves from a red bud in Fulshear, Texas. I would have ignored one, but two?

My first thought was eriophyid mite damage, until I found this bagworm on a red maple on the same property.

Then I began to wonder if the damage on the same part of the red bud leaf wasn't perhaps an aborted attempt to start a bag, which the leaf subsequently grew around.

(By the way, one might be tempted to correct me and insist that it's a silver maple leaf, because the bagworm damage leaves the illusion of deep sinuses. But it's a red maple.)

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