$ git clone -n https://src.fedoraproject.org/rpms/httpd.git /var/lib/mock/f39-build-1572883-37793/root/chroot_tmpdir/scmroot/httpd
Cloning into '/var/lib/mock/f39-build-1572883-37793/root/chroot_tmpdir/scmroot/httpd'...
$ git fetch origin c9253b5bbf710374a7cf1e91af75841ffc474d67:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/httpd
 * [new ref]         c9253b5bbf710374a7cf1e91af75841ffc474d67 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c9253b5 new version 2.4.58