$ git clone -n https://gitee.com/xht8015/perl-Tk.git /var/lib/mock/dist-an23-build-480059-74220/root/chroot_tmpdir/scmroot/perl-Tk
Cloning into '/var/lib/mock/dist-an23-build-480059-74220/root/chroot_tmpdir/scmroot/perl-Tk'...
$ git fetch origin 7a89c240e8f48bb62bd2cd98057ea79a689939ef:KOJI_FETCH_HEAD
From https://gitee.com/xht8015/perl-Tk
 * [new ref]         7a89c240e8f48bb62bd2cd98057ea79a689939ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a89c24 Add support for riscv64