$ git clone -n https://src.fedoraproject.org/rpms/radicale.git /var/lib/mock/f45-build-34270-683/root/chroot_tmpdir/scmroot/radicale
Cloning into '/var/lib/mock/f45-build-34270-683/root/chroot_tmpdir/scmroot/radicale'...
$ git fetch origin 3af2aad6a4053f8c5786941293714c3eebef9f65:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/radicale
 * [new ref]         3af2aad6a4053f8c5786941293714c3eebef9f65 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3af2aad 3.8.2/changelog