$ git clone -n https://src.fedoraproject.org/rpms/perl-SVK.git /var/lib/mock/f45-build-26108-614/root/chroot_tmpdir/scmroot/perl-SVK
Cloning into '/var/lib/mock/f45-build-26108-614/root/chroot_tmpdir/scmroot/perl-SVK'...
$ git fetch origin 2e3204b793303c2ca25649f69fb9be8b578ef1ad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-SVK
 * [new ref]         2e3204b793303c2ca25649f69fb9be8b578ef1ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2e3204b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild