$ git clone -n https://src.fedoraproject.org/rpms/golang-cloud-google-storage.git /var/lib/mock/f41-build-side-1-3011049-36852/root/chroot_tmpdir/scmroot/golang-cloud-google-storage
Cloning into '/var/lib/mock/f41-build-side-1-3011049-36852/root/chroot_tmpdir/scmroot/golang-cloud-google-storage'...
$ git fetch origin 758cdcc5bed73aa5338e8a0e47729eb3368376b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-cloud-google-storage
 * [new ref]         758cdcc5bed73aa5338e8a0e47729eb3368376b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 758cdcc Skip failing test - Closes rhbz#2300730