GPG metadata in commit queue commit message when showSignatures enabled in Git

In my ~/.gitconfig, I've set the following:

[log]

    showSignature = true

When using the commit queue, this has created the following commit in evergreen:
https://evergreen.mongodb.com/version/mongodb_mongo_master_22e98452c5eb9a4a0c08616a421e4894751966c9

The signature confirmation messages from git log appear to have propagated to the commit message.