$ git clone -n https://src.fedoraproject.org/rpms/texlive-collection-games.git /var/lib/mock/f45-build-37142-711/root/chroot_tmpdir/scmroot/texlive-collection-games
Cloning into '/var/lib/mock/f45-build-37142-711/root/chroot_tmpdir/scmroot/texlive-collection-games'...
$ git fetch origin ac82750f7b3690aaeb0dc9f0d7b52b10505f02a1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/texlive-collection-games
 * [new ref]         ac82750f7b3690aaeb0dc9f0d7b52b10505f02a1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ac82750 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild