$ git clone -n https://gitee.com/fundawang/gstreamer1-plugins-base.git /var/lib/mock/dist-an23-build-184493-60433/root/chroot_tmpdir/scmroot/gstreamer1-plugins-base
Cloning into '/var/lib/mock/dist-an23-build-184493-60433/root/chroot_tmpdir/scmroot/gstreamer1-plugins-base'...
$ git fetch origin dc5237ec9d3fd028fa830d19a0612e7e2fae0788:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/gstreamer1-plugins-base
 * [new ref]         dc5237ec9d3fd028fa830d19a0612e7e2fae0788 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc5237e 1.20.5