$ git clone -n https://src.fedoraproject.org/rpms/wget2.git /var/lib/mock/f45-build-38348-723/root/chroot_tmpdir/scmroot/wget2
Cloning into '/var/lib/mock/f45-build-38348-723/root/chroot_tmpdir/scmroot/wget2'...
$ git fetch origin 1d74f6b4548be71ae14ec993dd367856b571332b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wget2
 * [new ref]         1d74f6b4548be71ae14ec993dd367856b571332b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d74f6b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild