$ git clone -n https://gitee.com/src-opencloudos-rpms/tomcat.git /var/lib/mock/dist-oc9-build-81482-55205/root/chroot_tmpdir/scmroot/tomcat
Cloning into '/var/lib/mock/dist-oc9-build-81482-55205/root/chroot_tmpdir/scmroot/tomcat'...
$ git fetch origin 5eacc68ab78472b4255a71263331278e5d07bef9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tomcat
 * [new ref]         5eacc68ab78472b4255a71263331278e5d07bef9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5eacc68 import tomcat-9.0.86-1.tl4