$ git clone -n https://src.fedoraproject.org/rpms/scorched3d.git /var/lib/mock/f40-build-2233354-53371/root/chroot_tmpdir/scmroot/scorched3d
Cloning into '/var/lib/mock/f40-build-2233354-53371/root/chroot_tmpdir/scmroot/scorched3d'...
$ git fetch origin 5f193456ae540e732db37c0255a5c3f9a857c767:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/scorched3d
 * [new ref]         5f193456ae540e732db37c0255a5c3f9a857c767 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5f19345 Fix C type error in configure script (#2255225)