$ git clone -n https://src.fedoraproject.org/rpms/python-google-crc32c.git /var/lib/mock/f41-build-848573-164477/root/chroot_tmpdir/scmroot/python-google-crc32c
Cloning into '/var/lib/mock/f41-build-848573-164477/root/chroot_tmpdir/scmroot/python-google-crc32c'...
$ git fetch origin d98679e17cbfb0b5e491055044bd5da76b5d0f02:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-google-crc32c
 * [new ref]         d98679e17cbfb0b5e491055044bd5da76b5d0f02 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d98679e Update to 1.6.0 upstream release