$ git clone -n https://src.fedoraproject.org/rpms/perl-Log-Dispatch-Perl.git /var/lib/mock/f45-build-24557-604/root/chroot_tmpdir/scmroot/perl-Log-Dispatch-Perl
Cloning into '/var/lib/mock/f45-build-24557-604/root/chroot_tmpdir/scmroot/perl-Log-Dispatch-Perl'...
$ git fetch origin a4adccfbc0799961a12ab600fd90c46c46eea257:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Log-Dispatch-Perl
 * [new ref]         a4adccfbc0799961a12ab600fd90c46c46eea257 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4adccf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild