$ git clone -n https://src.fedoraproject.org/rpms/libsemigroups.git /var/lib/mock/f40-build-2243643-53698/root/chroot_tmpdir/scmroot/libsemigroups
Cloning into '/var/lib/mock/f40-build-2243643-53698/root/chroot_tmpdir/scmroot/libsemigroups'...
$ git fetch origin b05ba124e9c26f8450622e9eb6d457581c2f3ad7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsemigroups
 * [new ref]         b05ba124e9c26f8450622e9eb6d457581c2f3ad7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b05ba12 Fix pkgconfig version number