$ git clone -n https://src.fedoraproject.org/rpms/perl-HTTP-OAI.git /var/lib/mock/f45-build-24028-601/root/chroot_tmpdir/scmroot/perl-HTTP-OAI
Cloning into '/var/lib/mock/f45-build-24028-601/root/chroot_tmpdir/scmroot/perl-HTTP-OAI'...
$ git fetch origin 694d70a440c1e515500b1de2903ab8bca2d4323e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTTP-OAI
 * [new ref]         694d70a440c1e515500b1de2903ab8bca2d4323e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 694d70a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild