$ git clone -n https://gitee.com/xuchun-shang/kmod-udma.git /var/lib/mock/dist-an23-build-304844-66449/root/chroot_tmpdir/scmroot/kmod-udma
Cloning into '/var/lib/mock/dist-an23-build-304844-66449/root/chroot_tmpdir/scmroot/kmod-udma'...
$ git fetch origin 2b2f094c492bdaff93f5e65e80af4521bbe0d9af:KOJI_FETCH_HEAD
From https://gitee.com/xuchun-shang/kmod-udma
 * [new ref]         2b2f094c492bdaff93f5e65e80af4521bbe0d9af -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b2f094 spec: update kernel module required