doveadm/dsync/imapc and foldernames including a "%"

We're using doveadm/dsync/imapc to migrate accounts from Courier to Dovecot 2.2.20.

On the source-server some user have folder names including a "%" in their name.

Looks like doveadm isn't able to handle that folder names. I always stops with:

dsync(testtest): Error: Failed to access mailbox INBOX.Test%TEST: Mailbox does not exist, or must be subscribed to.

Peer

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