$ git clone -n https://gitee.com/src-opencloudos-rpms/tomcat.git /var/lib/mock/dist-oc9-build-254195-84387/root/chroot_tmpdir/scmroot/tomcat
Cloning into '/var/lib/mock/dist-oc9-build-254195-84387/root/chroot_tmpdir/scmroot/tomcat'...
$ git fetch origin 946a8461375c2f8120505fdcfec9c3da019d4a02:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tomcat
 * [new ref]         946a8461375c2f8120505fdcfec9c3da019d4a02 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 946a846 import tomcat-9.0.123-1.tl4