$ git clone -n https://src.fedoraproject.org/rpms/golang-github-fernet.git /var/lib/mock/f45-build-20129-568/root/chroot_tmpdir/scmroot/golang-github-fernet
Cloning into '/var/lib/mock/f45-build-20129-568/root/chroot_tmpdir/scmroot/golang-github-fernet'...
$ git fetch origin 6b9956ff19ee2f3b0612028719e36bfa3663f3d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-fernet
 * [new ref]         6b9956ff19ee2f3b0612028719e36bfa3663f3d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b9956f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild