$ git clone -n https://gitee.com/gaohongmei/perl.git /var/lib/mock/dist-an23-build-195018-60869/root/chroot_tmpdir/scmroot/perl
Cloning into '/var/lib/mock/dist-an23-build-195018-60869/root/chroot_tmpdir/scmroot/perl'...
$ git fetch origin 54b62dd0e7da28b187209dfc3dd8db20291faf95:KOJI_FETCH_HEAD
From https://gitee.com/gaohongmei/perl
 * [new ref]         54b62dd0e7da28b187209dfc3dd8db20291faf95 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 54b62dd remove libdb and perl-DB_File