lazy reading for radial info for the line estimates.
The radial information is currently only read when one makes a call to getLineEstimate.
However, if one used selectLineEstimates, for example, the radial info is not read. That can be a problem if one wants to directly access that (the rInfo will be None).
workaround
As a workaround, one can still make the additional call to getLineEstimate for each line.
better solution
Use a @property for the rInfo field, just like it is already done for other stuff. I think it should not have negative side effects. Then it is secured that rInfo will be filled if it is accessed and not read already.
Could be done in MR !43