$ git clone -n https://src.fedoraproject.org/rpms/perl-STD.git /var/lib/mock/f45-build-26098-614/root/chroot_tmpdir/scmroot/perl-STD
Cloning into '/var/lib/mock/f45-build-26098-614/root/chroot_tmpdir/scmroot/perl-STD'...
$ git fetch origin 92c82eae37244969c6eb32f0db3f9c6fbe064b77:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-STD
 * [new ref]         92c82eae37244969c6eb32f0db3f9c6fbe064b77 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 92c82ea Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild