$ git clone -n https://src.fedoraproject.org/rpms/php-phpmailer6.git /var/lib/mock/f45-build-28146-628/root/chroot_tmpdir/scmroot/php-phpmailer6
Cloning into '/var/lib/mock/f45-build-28146-628/root/chroot_tmpdir/scmroot/php-phpmailer6'...
$ git fetch origin 4061efac2fbcc63ce7825713750fde41acbbc532:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-phpmailer6
 * [new ref]         4061efac2fbcc63ce7825713750fde41acbbc532 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4061efa Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild