$ git clone -n https://src.fedoraproject.org/rpms/php-brick-varexporter.git /var/lib/mock/f45-build-27800-626/root/chroot_tmpdir/scmroot/php-brick-varexporter
Cloning into '/var/lib/mock/f45-build-27800-626/root/chroot_tmpdir/scmroot/php-brick-varexporter'...
$ git fetch origin 047dba50fa250d073848b2161cce5c6f50b94860:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-brick-varexporter
 * [new ref]         047dba50fa250d073848b2161cce5c6f50b94860 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 047dba5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild