[ u ] --> [ a | b | c ]
# putting the attributes on an extra line failed prior to v0.55 due to
# the basename being wrong:
{ basename: pv; }
[ pv.0 ]
[ u ] --> [ a | b | c ]
# putting the attributes on an extra line failed prior to v0.55 due to
# the basename being wrong:
{ basename: pv; }
[ pv.0 ]