$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-rrd.git /var/lib/mock/f42-build-862766-171084/root/chroot_tmpdir/scmroot/php-pecl-rrd
Cloning into '/var/lib/mock/f42-build-862766-171084/root/chroot_tmpdir/scmroot/php-pecl-rrd'...
$ git fetch origin 420e30c94f4bc01cd58ed6ed900c6f30bba14fd5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pecl-rrd
 * [new ref]         420e30c94f4bc01cd58ed6ed900c6f30bba14fd5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 420e30c rebuild for https://fedoraproject.org/wiki/Changes/php84