$ git clone -n https://gitee.com/src-opencloudos-rpms/qt5-qttools.git /var/lib/mock/dist-oc8-build-74706-51106/root/chroot_tmpdir/scmroot/qt5-qttools
Cloning into '/var/lib/mock/dist-oc8-build-74706-51106/root/chroot_tmpdir/scmroot/qt5-qttools'...
$ git fetch origin 42e26793fad0d3a14e759d5a8d607b8320f81a79:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/qt5-qttools
 * [new ref]         42e26793fad0d3a14e759d5a8d607b8320f81a79 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 42e2679 import qt5-qttools-5.15.3-6.tl3