$ git clone -n https://gitee.com/mgb01105731/libpng.git /var/lib/mock/dist-an23.3-build-414499-72844/root/chroot_tmpdir/scmroot/libpng
Cloning into '/var/lib/mock/dist-an23.3-build-414499-72844/root/chroot_tmpdir/scmroot/libpng'...
$ git fetch origin b0ed6526d0969316803df8ce72c4e31589ef33c0:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/libpng
 * [new ref]         b0ed6526d0969316803df8ce72c4e31589ef33c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b0ed652 Sync up from CentOS Stream libpng-1.6.40-1(tdawson@redhat.com)