$ git clone -n https://src.fedoraproject.org/rpms/tor.git /var/lib/mock/f45-build-37292-712/root/chroot_tmpdir/scmroot/tor
Cloning into '/var/lib/mock/f45-build-37292-712/root/chroot_tmpdir/scmroot/tor'...
$ git fetch origin 535a53b62ad99f82859fb7526998172a74a1ddbf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tor
 * [new ref]         535a53b62ad99f82859fb7526998172a74a1ddbf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 535a53b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild