$ git clone -n https://src.fedoraproject.org/rpms/wesnoth.git /var/lib/mock/f40-build-780888-131370/root/chroot_tmpdir/scmroot/wesnoth
Cloning into '/var/lib/mock/f40-build-780888-131370/root/chroot_tmpdir/scmroot/wesnoth'...
$ git fetch origin 6fccb863822a1dbecb175020730ce9b84a578415:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wesnoth
 * [new ref]         6fccb863822a1dbecb175020730ce9b84a578415 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6fccb86 1.17.26