$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-qt.git /var/lib/mock/f42-build-868439-176111/root/chroot_tmpdir/scmroot/fcitx5-qt
Cloning into '/var/lib/mock/f42-build-868439-176111/root/chroot_tmpdir/scmroot/fcitx5-qt'...
$ git fetch origin 612cabf76a76f0900f0a7e67c951fd677133b843:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-qt
 * [new ref]         612cabf76a76f0900f0a7e67c951fd677133b843 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 612cabf update to upstream release 5.1.9