$ git clone -n https://src.fedoraproject.org/rpms/python-google-cloud-functions.git /var/lib/mock/f39-build-1877720-42741/root/chroot_tmpdir/scmroot/python-google-cloud-functions
Cloning into '/var/lib/mock/f39-build-1877720-42741/root/chroot_tmpdir/scmroot/python-google-cloud-functions'...
$ git fetch origin c9498f7578e5714c2c7836ad59410b1c5bdf8665:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-google-cloud-functions
 * [new ref]         c9498f7578e5714c2c7836ad59410b1c5bdf8665 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c9498f7 Allow koji builds by packit