$ git clone -n https://src.fedoraproject.org/rpms/sqlgrey.git /var/lib/mock/f45-build-36424-704/root/chroot_tmpdir/scmroot/sqlgrey
Cloning into '/var/lib/mock/f45-build-36424-704/root/chroot_tmpdir/scmroot/sqlgrey'...
$ git fetch origin f4d648104243f0f7b8db1f0c065ef34c68079be9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sqlgrey
 * [new ref]         f4d648104243f0f7b8db1f0c065ef34c68079be9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f4d6481 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild