$ git clone -n https://gitee.com/fundawang/qt5-qtbase.git /var/lib/mock/dist-an23-build-313135-67129/root/chroot_tmpdir/scmroot/qt5-qtbase
Cloning into '/var/lib/mock/dist-an23-build-313135-67129/root/chroot_tmpdir/scmroot/qt5-qtbase'...
$ git fetch origin 1c7f8644f1b3af50e7c325db262dcf3c0ad70c00:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/qt5-qtbase
 * [new ref]         1c7f8644f1b3af50e7c325db262dcf3c0ad70c00 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1c7f864 5.15.11