$ git clone -n https://gitee.com/src-opencloudos-rpms/libtasn1.git /var/lib/mock/dist-oc9-build-232788-81774/root/chroot_tmpdir/scmroot/libtasn1
Cloning into '/var/lib/mock/dist-oc9-build-232788-81774/root/chroot_tmpdir/scmroot/libtasn1'...
$ git fetch origin 2533e50ae9c754eba9e3205868bb7c0848a409d9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libtasn1
 * [new ref]         2533e50ae9c754eba9e3205868bb7c0848a409d9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2533e50 import libtasn1-4.19.0-6.tl4