$ git clone -n https://gitee.com/src-opencloudos-rpms/tomcat.git /var/lib/mock/dist-oc8-build-80870-54159/root/chroot_tmpdir/scmroot/tomcat
Cloning into '/var/lib/mock/dist-oc8-build-80870-54159/root/chroot_tmpdir/scmroot/tomcat'...
$ git fetch origin 5afd9610b3330698351ccacef71d2a4f793cf34c:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tomcat
 * [new ref]         5afd9610b3330698351ccacef71d2a4f793cf34c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5afd961 import tomcat-9.0.87-1.tl3.1