$ git clone -n https://src.fedoraproject.org/rpms/perl-SQL-Abstract-Classic.git /var/lib/mock/f45-build-26069-614/root/chroot_tmpdir/scmroot/perl-SQL-Abstract-Classic
Cloning into '/var/lib/mock/f45-build-26069-614/root/chroot_tmpdir/scmroot/perl-SQL-Abstract-Classic'...
$ git fetch origin e74aa0b920b45e37111041825de4a03a64e51b7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-SQL-Abstract-Classic
 * [new ref]         e74aa0b920b45e37111041825de4a03a64e51b7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e74aa0b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild