$ git clone -n https://src.fedoraproject.org/rpms/hyphen.git /var/lib/mock/f40-build-2599159-63013/root/chroot_tmpdir/scmroot/hyphen
Cloning into '/var/lib/mock/f40-build-2599159-63013/root/chroot_tmpdir/scmroot/hyphen'...
$ git fetch origin efd01702a2e488c982b21ba121adba5fd7910ff7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hyphen
 * [new ref]         efd01702a2e488c982b21ba121adba5fd7910ff7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at efd0170 Properly check valgrind arches