$ git clone -n https://src.fedoraproject.org/rpms/httpd.git /var/lib/mock/f45-build-13498-451/root/chroot_tmpdir/scmroot/httpd
Cloning into '/var/lib/mock/f45-build-13498-451/root/chroot_tmpdir/scmroot/httpd'...
$ git fetch origin ce06145c0504718371cbac444cce21e58408096e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/httpd
 * [new ref]         ce06145c0504718371cbac444cce21e58408096e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce06145 rebuild for apr-util 1.6.5