$ git clone -n https://gitee.com/src-opencloudos-rpms/tomcat.git /var/lib/mock/dist-oc8-build-243617-83148/root/chroot_tmpdir/scmroot/tomcat
Cloning into '/var/lib/mock/dist-oc8-build-243617-83148/root/chroot_tmpdir/scmroot/tomcat'...
$ git fetch origin 9c881096922ac0feca7fc51fa677af23f317a538:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tomcat
 * [new ref]         9c881096922ac0feca7fc51fa677af23f317a538 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9c88109 import tomcat-9.0.87-2.tl3