$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-cohomolo.git /var/lib/mock/f40-build-1997046-44098/root/chroot_tmpdir/scmroot/gap-pkg-cohomolo
Cloning into '/var/lib/mock/f40-build-1997046-44098/root/chroot_tmpdir/scmroot/gap-pkg-cohomolo'...
$ git fetch origin 7078f3a536cb161366c957358396e9f5ede32ad9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-cohomolo
 * [new ref]         7078f3a536cb161366c957358396e9f5ede32ad9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7078f3a Set build_type_safety_c to 0 (#2190297)