$ git clone -n https://gitee.com/fundawang/qt5-qtbase.git /var/lib/mock/dist-an23-build-284988-64769/root/chroot_tmpdir/scmroot/qt5-qtbase
Cloning into '/var/lib/mock/dist-an23-build-284988-64769/root/chroot_tmpdir/scmroot/qt5-qtbase'...
$ git fetch origin 78fe98849fe5ee2ffee51e237581b29e8d24e4c8:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/qt5-qtbase
 * [new ref]         78fe98849fe5ee2ffee51e237581b29e8d24e4c8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78fe988 5.15.10