$ git clone -n https://gitee.com/fundawang/tomcat.git /var/lib/mock/dist-an23-build-337363-69705/root/chroot_tmpdir/scmroot/tomcat
Cloning into '/var/lib/mock/dist-an23-build-337363-69705/root/chroot_tmpdir/scmroot/tomcat'...
$ git fetch origin ec8e1c0eaa004d891bebf8248e729753fbe1daf5:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/tomcat
 * [new ref]         ec8e1c0eaa004d891bebf8248e729753fbe1daf5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec8e1c0 9.0.84