$ git clone -n https://src.fedoraproject.org/rpms/fcitx5-qt.git /var/lib/mock/f42-build-side-1-3540437-46574/root/chroot_tmpdir/scmroot/fcitx5-qt
Cloning into '/var/lib/mock/f42-build-side-1-3540437-46574/root/chroot_tmpdir/scmroot/fcitx5-qt'...
$ git fetch origin 14760bc22bb13f4efdf579e4326463108e4f11e8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcitx5-qt
 * [new ref]         14760bc22bb13f4efdf579e4326463108e4f11e8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 14760bc Rebuild (qt6)