$ git clone -n https://src.fedoraproject.org/rpms/rpmdistro-repoquery.git /var/lib/mock/f45-build-34653-690/root/chroot_tmpdir/scmroot/rpmdistro-repoquery
Cloning into '/var/lib/mock/f45-build-34653-690/root/chroot_tmpdir/scmroot/rpmdistro-repoquery'...
$ git fetch origin 3be5a777bb00e237411441bb4acd966a1ded4054:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rpmdistro-repoquery
 * [new ref]         3be5a777bb00e237411441bb4acd966a1ded4054 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3be5a77 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild