$ git clone -n https://src.fedoraproject.org/rpms/yosys.git /var/lib/mock/f41-build-837369-159045/root/chroot_tmpdir/scmroot/yosys
Cloning into '/var/lib/mock/f41-build-837369-159045/root/chroot_tmpdir/scmroot/yosys'...
$ git fetch origin d7604c74373f566ff6ac68c1d49c3f19d5bc5b87:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yosys
 * [new ref]         d7604c74373f566ff6ac68c1d49c3f19d5bc5b87 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d7604c7 update to 0.44 snapshot