$ git clone -n https://src.fedoraproject.org/rpms/radicale.git /var/lib/mock/f41-build-side-1-2744318-30948/root/chroot_tmpdir/scmroot/radicale
Cloning into '/var/lib/mock/f41-build-side-1-2744318-30948/root/chroot_tmpdir/scmroot/radicale'...
$ git fetch origin 54ef6af51047199ceadf00ae629f63e943571996:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/radicale
 * [new ref]         54ef6af51047199ceadf00ae629f63e943571996 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 54ef6af Update to 3.2.3