$ git clone -n https://src.fedoraproject.org/rpms/rtl-sdr.git /var/lib/mock/f45-build-34708-690/root/chroot_tmpdir/scmroot/rtl-sdr
Cloning into '/var/lib/mock/f45-build-34708-690/root/chroot_tmpdir/scmroot/rtl-sdr'...
$ git fetch origin d6d110665922add0c9db103538922f42cf4bff4b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rtl-sdr
 * [new ref]         d6d110665922add0c9db103538922f42cf4bff4b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6d1106 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild