$ git clone -n https://src.fedoraproject.org/rpms/GoldenCheetah.git /var/lib/mock/f41-build-855936-167429/root/chroot_tmpdir/scmroot/GoldenCheetah
Cloning into '/var/lib/mock/f41-build-855936-167429/root/chroot_tmpdir/scmroot/GoldenCheetah'...
$ git fetch origin fc9f5a9c35c0f29de54fb5c917903b81ce07e9e5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/GoldenCheetah
 * [new ref]         fc9f5a9c35c0f29de54fb5c917903b81ce07e9e5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc9f5a9 Modify desktop file to force X-Start