$ git clone -n https://gitee.com/src-opencloudos-rpms/openjpeg2.git /var/lib/mock/dist-oc9-build-186487-80301/root/chroot_tmpdir/scmroot/openjpeg2
Cloning into '/var/lib/mock/dist-oc9-build-186487-80301/root/chroot_tmpdir/scmroot/openjpeg2'...
$ git fetch origin 4d234b33a1e9103c5a9f03a63f24f73de6066e6b:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/openjpeg2
 * [new ref]         4d234b33a1e9103c5a9f03a63f24f73de6066e6b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4d234b3 import openjpeg2-2.5.0-6.tl4