$ git clone -n https://src.fedoraproject.org/rpms/rust-secret-service.git /var/lib/mock/f41-build-side-1-3134912-39764/root/chroot_tmpdir/scmroot/rust-secret-service
Cloning into '/var/lib/mock/f41-build-side-1-3134912-39764/root/chroot_tmpdir/scmroot/rust-secret-service'...
$ git fetch origin c1634ad27e037d0a50f69a45d6426eca82611acc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-secret-service
 * [new ref]         c1634ad27e037d0a50f69a45d6426eca82611acc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c1634ad no longer needed