$ git clone -n https://src.fedoraproject.org/rpms/R-RODBC.git /var/lib/mock/f45-build-5913-345/root/chroot_tmpdir/scmroot/R-RODBC
Cloning into '/var/lib/mock/f45-build-5913-345/root/chroot_tmpdir/scmroot/R-RODBC'...
$ git fetch origin 1eaf532a6e18f6cd7927035319d18a1d22e3b010:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-RODBC
 * [new ref]         1eaf532a6e18f6cd7927035319d18a1d22e3b010 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1eaf532 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild