Fixed a problem in the DefaultJoiner: If all join paths were infeasible, then terminate the current branch. Previously, "True()" was passed to the continuation as a dummy result value, but this results in sort errors if the context of the join doesn't expect a boolean-sorted result.
Fixed a problem in the DefaultJoiner: If all join paths were infeasible, then terminate the current branch. Previously, "True()" was passed to the continuation as a dummy result value, but this results in sort errors if the context of the join doesn't expect a boolean-sorted result.

sccblom/vercors,sccblom/vercors,sccblom/vercors,sccblom/vercors,sccblom/vercors