$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-mozc.git /var/lib/mock/f45-build-8819-396/root/chroot_tmpdir/scmroot/fcitx5-mozc
Cloning into '/var/lib/mock/f45-build-8819-396/root/chroot_tmpdir/scmroot/fcitx5-mozc'...
$ git fetch origin 062b181e9f18a5dba3bed75c6fb8ebddfd5b9655:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-mozc
 * [new ref]         062b181e9f18a5dba3bed75c6fb8ebddfd5b9655 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 062b181 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild