$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-hap.git /var/lib/mock/f38-build-side-42-init-devel-982364-29040/root/chroot_tmpdir/scmroot/gap-pkg-hap
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-982364-29040/root/chroot_tmpdir/scmroot/gap-pkg-hap'...
$ git fetch origin 69e28a303fa72d8fb4d449b39b0f587d3396f458:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-hap
 * [new ref]         69e28a303fa72d8fb4d449b39b0f587d3396f458 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 69e28a3 Version 1.56