$ git clone -n https://src.fedoraproject.org/rpms/fxload.git /var/lib/mock/f45-build-9381-403/root/chroot_tmpdir/scmroot/fxload
Cloning into '/var/lib/mock/f45-build-9381-403/root/chroot_tmpdir/scmroot/fxload'...
$ git fetch origin f48ddcbd405da733955c5f5043c7a67008599483:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fxload
 * [new ref]         f48ddcbd405da733955c5f5043c7a67008599483 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f48ddcb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild