$ git clone -n https://src.fedoraproject.org/rpms/perl-Catalyst-Helper-FastCGI-ExternalServer.git /var/lib/mock/f45-build-22175-590/root/chroot_tmpdir/scmroot/perl-Catalyst-Helper-FastCGI-ExternalServer
Cloning into '/var/lib/mock/f45-build-22175-590/root/chroot_tmpdir/scmroot/perl-Catalyst-Helper-FastCGI-ExternalServer'...
$ git fetch origin c0f5de40a53cb5f362c882a4cf56be227b2875db:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Catalyst-Helper-FastCGI-ExternalServer
 * [new ref]         c0f5de40a53cb5f362c882a4cf56be227b2875db -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c0f5de4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild